80831225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{449}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 106020000

約数和(自身を除く): 25188775

約数列:

[1, 5, 19, 25, 95, 379, 449, 475, 1895, 2245, 7201, 8531, 9475, 11225, 36005, 42655, 170171, 180025, 213275, 850855, 3233249, 4254275, 16166245, 80831225]

約数ペア:

[(1, 80831225), (5, 16166245), (19, 4254275), (25, 3233249), (95, 850855), (379, 213275), (449, 180025), (475, 170171), (1895, 42655), (2245, 36005), (7201, 11225), (8531, 9475)]