71285890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{42181}}^1$

素因数の和:42214

約数の個数: 24

約数和(自身を含む): 138947508

約数和(自身を除く): 67661618

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 42181, 84362, 210905, 421810, 548353, 1096706, 2741765, 5483530, 7128589, 14257178, 35642945, 71285890]

約数ペア:

[(1, 71285890), (2, 35642945), (5, 14257178), (10, 7128589), (13, 5483530), (26, 2741765), (65, 1096706), (130, 548353), (169, 421810), (338, 210905), (845, 84362), (1690, 42181)]