20243875

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{2281}}^1$

素因数の和:2367

約数の個数: 16

約数和(自身を含む): 25631424

約数和(自身を除く): 5387549

約数列:

[1, 5, 25, 71, 125, 355, 1775, 2281, 8875, 11405, 57025, 161951, 285125, 809755, 4048775, 20243875]

約数ペア:

[(1, 20243875), (5, 4048775), (25, 809755), (71, 285125), (125, 161951), (355, 57025), (1775, 11405), (2281, 8875)]