81170029540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{238735381}}^1$

素因数の和:238735407

約数の個数: 24

約数和(自身を含む): 180483948792

約数和(自身を除く): 99313919252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 238735381, 477470762, 954941524, 1193676905, 2387353810, 4058501477, 4774707620, 8117002954, 16234005908, 20292507385, 40585014770, 81170029540]

約数ペア:

[(1, 81170029540), (2, 40585014770), (4, 20292507385), (5, 16234005908), (10, 8117002954), (17, 4774707620), (20, 4058501477), (34, 2387353810), (68, 1193676905), (85, 954941524), (170, 477470762), (340, 238735381)]