友愛数

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Japanese

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Kanji in this term
ゆう
Grade: 2
あい
Grade: 4
すう
Grade: 2
on'yomi
Alternative spelling
友愛數 (kyūjitai)
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Etymology

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友愛 +‎

Noun

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(ゆう)(あい)(すう) (yūaisū

  1. (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.