18188680

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6229}}^1$

素因数の和:6313

約数の個数: 32

約数和(自身を含む): 41491800

約数和(自身を除く): 23303120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6229, 12458, 24916, 31145, 49832, 62290, 124580, 249160, 454717, 909434, 1818868, 2273585, 3637736, 4547170, 9094340, 18188680]

約数ペア:

[(1, 18188680), (2, 9094340), (4, 4547170), (5, 3637736), (8, 2273585), (10, 1818868), (20, 909434), (40, 454717), (73, 249160), (146, 124580), (292, 62290), (365, 49832), (584, 31145), (730, 24916), (1460, 12458), (2920, 6229)]