81130825

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 104229440

約数和(自身を除く): 23098615

約数列:

[1, 5, 25, 37, 139, 185, 631, 695, 925, 3155, 3475, 5143, 15775, 23347, 25715, 87709, 116735, 128575, 438545, 583675, 2192725, 3245233, 16226165, 81130825]

約数ペア:

[(1, 81130825), (5, 16226165), (25, 3245233), (37, 2192725), (139, 583675), (185, 438545), (631, 128575), (695, 116735), (925, 87709), (3155, 25715), (3475, 23347), (5143, 15775)]