489103025

素因数分解:

$5^2\times {\mathrm{71}}^2\times {\mathrm{3881}}^1$

素因数の和:4033

約数の個数: 18

約数和(自身を含む): 615308646

約数和(自身を除く): 126205621

約数列:

[1, 5, 25, 71, 355, 1775, 3881, 5041, 19405, 25205, 97025, 126025, 275551, 1377755, 6888775, 19564121, 97820605, 489103025]

約数ペア:

[(1, 489103025), (5, 97820605), (25, 19564121), (71, 6888775), (355, 1377755), (1775, 275551), (3881, 126025), (5041, 97025), (19405, 25205)]