20130305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5077}}^1$

素因数の和:5156

約数の個数: 16

約数和(自身を含む): 26446224

約数和(自身を除く): 6315919

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 5077, 25385, 66001, 309697, 330005, 1548485, 4026061, 20130305]

約数ペア:

[(1, 20130305), (5, 4026061), (13, 1548485), (61, 330005), (65, 309697), (305, 66001), (793, 25385), (3965, 5077)]