28518100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21937}}^1$

素因数の和:21964

約数の個数: 36

約数和(自身を含む): 66647644

約数和(自身を除く): 38129544

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 21937, 43874, 87748, 109685, 219370, 285181, 438740, 548425, 570362, 1096850, 1140724, 1425905, 2193700, 2851810, 5703620, 7129525, 14259050, 28518100]

約数ペア:

[(1, 28518100), (2, 14259050), (4, 7129525), (5, 5703620), (10, 2851810), (13, 2193700), (20, 1425905), (25, 1140724), (26, 1096850), (50, 570362), (52, 548425), (65, 438740), (100, 285181), (130, 219370), (260, 109685), (325, 87748), (650, 43874), (1300, 21937)]