28306655

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 37200240

約数和(自身を除く): 8893585

約数列:

[1, 5, 13, 65, 139, 169, 241, 695, 845, 1205, 1807, 3133, 9035, 15665, 23491, 33499, 40729, 117455, 167495, 203645, 435487, 2177435, 5661331, 28306655]

約数ペア:

[(1, 28306655), (5, 5661331), (13, 2177435), (65, 435487), (139, 203645), (169, 167495), (241, 117455), (695, 40729), (845, 33499), (1205, 23491), (1807, 15665), (3133, 9035)]