相亲数 - 引用次数：1参考来源 - 2500年研究探寻相亲数 2500 Years in the Search for Amicable Numbers
亲和数
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Amicable numbers
abstract:Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. (A proper divisor of a number is a positive factor of that number other than the number itself.