"友愛数" meaning in Japanese

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  "etymology_text": "友愛 + 数",
  "forms": [
    {
      "form": "友愛数",
      "ruby": [
        [
          "友",
          "ゆう"
        ],
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          "愛",
          "あい"
        ],
        [
          "数",
          "すう"
        ]
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    {
      "args": {
        "1": "ゆうあいすう"
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      "expansion": "友(ゆう)愛(あい)数(すう) • (yūaisū)",
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  "pos": "noun",
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      ],
      "glosses": [
        "amicable numbers, two different numbers related in such a way that the sum of the proper divisors of each is equal to the other number."
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        "(number theory) amicable numbers, two different numbers related in such a way that the sum of the proper divisors of each is equal to the other number."
      ],
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        "mathematics",
        "number-theory",
        "sciences"
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  ],
  "word": "友愛数"
}

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      "expansion": "友愛 + 数",
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  ],
  "etymology_text": "友愛 + 数",
  "forms": [
    {
      "form": "友愛数",
      "ruby": [
        [
          "友",
          "ゆう"
        ],
        [
          "愛",
          "あい"
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          "数",
          "すう"
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        "amicable numbers, two different numbers related in such a way that the sum of the proper divisors of each is equal to the other number."
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        "(number theory) amicable numbers, two different numbers related in such a way that the sum of the proper divisors of each is equal to the other number."
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        "mathematics",
        "number-theory",
        "sciences"
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