90131665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 120347136

約数和(自身を除く): 30215471

約数列:

[1, 5, 13, 47, 65, 163, 181, 235, 611, 815, 905, 2119, 2353, 3055, 7661, 8507, 10595, 11765, 29503, 38305, 42535, 99593, 110591, 147515, 383539, 497965, 552955, 1386641, 1917695, 6933205, 18026333, 90131665]

約数ペア:

[(1, 90131665), (5, 18026333), (13, 6933205), (47, 1917695), (65, 1386641), (163, 552955), (181, 497965), (235, 383539), (611, 147515), (815, 110591), (905, 99593), (2119, 42535), (2353, 38305), (3055, 29503), (7661, 11765), (8507, 10595)]