Amicable pair
= Amicable pair
A pair of distinct <positive integers> in which each is the <proper-divisor sum> of the other. The <integers> $220$ and $284$ form an <amicable pair>.
= Amicable pair
A pair of distinct <positive integers> in which each is the <proper-divisor sum> of the other. The <integers> $220$ and $284$ form an <amicable pair>.