123993680

素因数分解:

$2^4\times 5^1\times {\mathrm{1549921}}^1$

素因数の和:1549934

約数の個数: 20

約数和(自身を含む): 288285492

約数和(自身を除く): 164291812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1549921, 3099842, 6199684, 7749605, 12399368, 15499210, 24798736, 30998420, 61996840, 123993680]

約数ペア:

[(1, 123993680), (2, 61996840), (4, 30998420), (5, 24798736), (8, 15499210), (10, 12399368), (16, 7749605), (20, 6199684), (40, 3099842), (80, 1549921)]