389625820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{266867}}^1$

素因数の和:266949

約数の個数: 24

約数和(自身を含む): 829425744

約数和(自身を除く): 439799924

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 266867, 533734, 1067468, 1334335, 2668670, 5337340, 19481291, 38962582, 77925164, 97406455, 194812910, 389625820]

約数ペア:

[(1, 389625820), (2, 194812910), (4, 97406455), (5, 77925164), (10, 38962582), (20, 19481291), (73, 5337340), (146, 2668670), (292, 1334335), (365, 1067468), (730, 533734), (1460, 266867)]