20862475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 6635765

約数列:

[1, 5, 19, 25, 95, 167, 263, 475, 835, 1315, 3173, 4175, 4997, 6575, 15865, 24985, 43921, 79325, 124925, 219605, 834499, 1098025, 4172495, 20862475]

約数ペア:

[(1, 20862475), (5, 4172495), (19, 1098025), (25, 834499), (95, 219605), (167, 124925), (263, 79325), (475, 43921), (835, 24985), (1315, 15865), (3173, 6575), (4175, 4997)]