31894825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 42184800

約数和(自身を除く): 10289975

約数列:

[1, 5, 19, 25, 83, 95, 415, 475, 809, 1577, 2075, 4045, 7885, 15371, 20225, 39425, 67147, 76855, 335735, 384275, 1275793, 1678675, 6378965, 31894825]

約数ペア:

[(1, 31894825), (5, 6378965), (19, 1678675), (25, 1275793), (83, 384275), (95, 335735), (415, 76855), (475, 67147), (809, 39425), (1577, 20225), (2075, 15371), (4045, 7885)]