18464620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12647}}^1$

素因数の和:12729

約数の個数: 24

約数和(自身を含む): 39309984

約数和(自身を除く): 20845364

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12647, 25294, 50588, 63235, 126470, 252940, 923231, 1846462, 3692924, 4616155, 9232310, 18464620]

約数ペア:

[(1, 18464620), (2, 9232310), (4, 4616155), (5, 3692924), (10, 1846462), (20, 923231), (73, 252940), (146, 126470), (292, 63235), (365, 50588), (730, 25294), (1460, 12647)]