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The following are the first few examples of what: (220, 284), (1184, 1210), (2620, 2924), (5020, 5564) & (6232, 6368)?

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The following are the first few examples of what: (220, 284), (1184, 1210), (2620, 2924), (5020, 5564) & (6232, 6368)?
posted Dec 5, 2018 by Rahul Chandel

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Amicable numbers
Amicable numbers are two different numbers where the sum of the proper divisors of one of the numbers is equal to the other. (A proper divisor is a positive integer other than the number itself.) For example, the proper divisors of 220 are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55 & 110, which total 284; the proper divisors of 284 are 1, 2, 4, 71, & 142, which total 220.

answer Dec 6, 2018 by Vikram Luthra
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