Concept information
Terme préférentiel
amicable numbers
Définition
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Amicable numbers are two different natural numbers related in such a way that the sum of the proper divisors of each is equal to the other number. That is, s(a)=b and s(b)=a, where s(n)=σ(n)-n is equal to the sum of positive divisors of n except n itself.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Amicable_numbers)
Concept générique
Traductions
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français
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nombres aimables
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nombres amiables
URI
http://data.loterre.fr/ark:/67375/PSR-T9B5VHTP-V
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