2108803975

素因数分解:

$5^2\times {\mathrm{103}}^2\times {\mathrm{7951}}^1$

素因数の和:8167

約数の個数: 18

約数和(自身を含む): 2640883056

約数和(自身を除く): 532079081

約数列:

[1, 5, 25, 103, 515, 2575, 7951, 10609, 39755, 53045, 198775, 265225, 818953, 4094765, 20473825, 84352159, 421760795, 2108803975]

約数ペア:

[(1, 2108803975), (5, 421760795), (25, 84352159), (103, 20473825), (515, 4094765), (2575, 818953), (7951, 265225), (10609, 198775), (39755, 53045)]