| Definitions | | amicable numbers |
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noun (plural)
- (number theory) A pair of numbers having the property that the sum of the divisors of each, excluding itself, is equal to the other number.
- The factors of 220, excluding 220 itself, are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55 and 110 and sum to 284; the factors of 284, excluding 284 itself, are 1, 2, 4, 71, and 142, and sum to 220; hence 220 and 284 are .
Translations: - German: befreundete Zahlen
- Spanish: níºmeros amigos m plural
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