18252580

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1997}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 38433528

約数和(自身を除く): 20180948

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 1997, 2285, 3994, 4570, 7988, 9140, 9985, 19970, 39940, 912629, 1825258, 3650516, 4563145, 9126290, 18252580]

約数ペア:

[(1, 18252580), (2, 9126290), (4, 4563145), (5, 3650516), (10, 1825258), (20, 912629), (457, 39940), (914, 19970), (1828, 9985), (1997, 9140), (2285, 7988), (3994, 4570)]