18800680

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1531}}^1$

素因数の和:1849

約数の個数: 32

約数和(自身を含む): 42467040

約数和(自身を除く): 23666360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1531, 1535, 2456, 3062, 3070, 6124, 6140, 7655, 12248, 12280, 15310, 30620, 61240, 470017, 940034, 1880068, 2350085, 3760136, 4700170, 9400340, 18800680]

約数ペア:

[(1, 18800680), (2, 9400340), (4, 4700170), (5, 3760136), (8, 2350085), (10, 1880068), (20, 940034), (40, 470017), (307, 61240), (614, 30620), (1228, 15310), (1531, 12280), (1535, 12248), (2456, 7655), (3062, 6140), (3070, 6124)]