ゆうあいすう

Japanese

For pronunciation and definitions of ゆうあいすう – see the following entry.

【友愛数】 [noun] (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.

(This term, ゆうあいすう (yūaisū), is the hiragana spelling of the above term.)