168680

素因数分解:

$2^3\times 5^1\times {\mathrm{4217}}^1$

素因数の和:4228

約数の個数: 16

約数和(自身を含む): 379620

約数和(自身を除く): 210940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4217, 8434, 16868, 21085, 33736, 42170, 84340, 168680]

約数ペア:

[(1, 168680), (2, 84340), (4, 42170), (5, 33736), (8, 21085), (10, 16868), (20, 8434), (40, 4217)]