Or an amicable pair, said Sam. Sorry? In math, that’s what we call two numbers each of which is equal to the sum of the divisors of the other. The smallest ones, 220 and 284, were regarded by the Pythagoreans as symbols of true friendship.
Reginald Hill
Or an amicable pair, said Sam. Sorry? In math, that’s what we call two numbers each of which is equal to the sum of the divisors of the other. The smallest ones, 220 and 284, were regarded by the Pythagoreans as symbols of true friendship.