131553680

素因数分解:

$2^4\times 5^1\times {\mathrm{1644421}}^1$

素因数の和:1644434

約数の個数: 20

約数和(自身を含む): 305862492

約数和(自身を除く): 174308812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1644421, 3288842, 6577684, 8222105, 13155368, 16444210, 26310736, 32888420, 65776840, 131553680]

約数ペア:

[(1, 131553680), (2, 65776840), (4, 32888420), (5, 26310736), (8, 16444210), (10, 13155368), (16, 8222105), (20, 6577684), (40, 3288842), (80, 1644421)]