20804085125

素因数分解:

$5^3\times {\mathrm{2671}}^1\times {\mathrm{62311}}^1$

素因数の和:64997

約数の個数: 16

約数和(自身を含む): 25973635584

約数和(自身を除く): 5169550459

約数列:

[1, 5, 25, 125, 2671, 13355, 62311, 66775, 311555, 333875, 1557775, 7788875, 166432681, 832163405, 4160817025, 20804085125]

約数ペア:

[(1, 20804085125), (5, 4160817025), (25, 832163405), (125, 166432681), (2671, 7788875), (13355, 1557775), (62311, 333875), (66775, 311555)]