18713680

素因数分解:

$2^4\times 5^1\times {\mathrm{233921}}^1$

素因数の和:233934

約数の個数: 20

約数和(自身を含む): 43509492

約数和(自身を除く): 24795812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233921, 467842, 935684, 1169605, 1871368, 2339210, 3742736, 4678420, 9356840, 18713680]

約数ペア:

[(1, 18713680), (2, 9356840), (4, 4678420), (5, 3742736), (8, 2339210), (10, 1871368), (16, 1169605), (20, 935684), (40, 467842), (80, 233921)]