20568145

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 27103032

約数和(自身を除く): 6534887

約数列:

[1, 5, 13, 65, 101, 169, 241, 505, 845, 1205, 1313, 3133, 6565, 15665, 17069, 24341, 40729, 85345, 121705, 203645, 316433, 1582165, 4113629, 20568145]

約数ペア:

[(1, 20568145), (5, 4113629), (13, 1582165), (65, 316433), (101, 203645), (169, 121705), (241, 85345), (505, 40729), (845, 24341), (1205, 17069), (1313, 15665), (3133, 6565)]