Problem 44748. Amicable numbers
Test whether two numbers are amicable, meaning that the sum of the proper divisors of each number is equal to the other number.
Example: 220 and 284 are amicable numbers because the proper divisors of 220 are 1,2,4,5,10,11,20,22,44,55,110 and their sum is 284, while the proper divisors of 284 are 1,2,4,71,142 and their sum is 220.
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