hyperperfect number
hyperperfect number · hyperperfect numbers
Any natural number n for which, for some positive integer k, n = 1 + k - n - 1), where…Any natural number n for which, for some positive integer k, n = 1 + k(σ(n) - n - 1), where σ(n) is the sum of the positive divisors of n.
Значение
значений: 1Any natural number n for which, for some positive integer k, n = 1 + k(σ(n) - n - 1), where σ(n) is the sum of the positive divisors of n.
1966, American Mathematical Society Translations, page 258, […] the asymptotic density of all hyperperfect numbers, that is, numbers m for which m | σ(m), is equal to zero.
Происхождение
From hyper- + perfect number.From hyper- + perfect number.
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Формы
мн. число: hyperperfect numbers| Ед. число | hyperperfect number |
|---|---|
| Мн. число | hyperperfect numbers |
правильный
Однокоренные
связанных слов: 1Связанныеperfect number