81318520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{34457}}^1$

素因数の和:34527

約数の個数: 32

約数和(自身を含む): 186073200

約数和(自身を除く): 104754680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 34457, 68914, 137828, 172285, 275656, 344570, 689140, 1378280, 2032963, 4065926, 8131852, 10164815, 16263704, 20329630, 40659260, 81318520]

約数ペア:

[(1, 81318520), (2, 40659260), (4, 20329630), (5, 16263704), (8, 10164815), (10, 8131852), (20, 4065926), (40, 2032963), (59, 1378280), (118, 689140), (236, 344570), (295, 275656), (472, 172285), (590, 137828), (1180, 68914), (2360, 34457)]