79996640

素因数分解:

$2^5\times 5^1\times {\mathrm{499979}}^1$

素因数の和:499994

約数の個数: 24

約数和(自身を含む): 188992440

約数和(自身を除く): 108995800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 499979, 999958, 1999916, 2499895, 3999832, 4999790, 7999664, 9999580, 15999328, 19999160, 39998320, 79996640]

約数ペア:

[(1, 79996640), (2, 39998320), (4, 19999160), (5, 15999328), (8, 9999580), (10, 7999664), (16, 4999790), (20, 3999832), (32, 2499895), (40, 1999916), (80, 999958), (160, 499979)]