20180128085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2266157}}^1$

素因数の和:2266312

約数の個数: 16

約数和(自身を含む): 26269303536

約数和(自身を除く): 6089175451

約数列:

[1, 5, 13, 65, 137, 685, 1781, 8905, 2266157, 11330785, 29460041, 147300205, 310463509, 1552317545, 4036025617, 20180128085]

約数ペア:

[(1, 20180128085), (5, 4036025617), (13, 1552317545), (65, 310463509), (137, 147300205), (685, 29460041), (1781, 11330785), (8905, 2266157)]