20078725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1031}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 26873280

約数和(自身を除く): 6794555

約数列:

[1, 5, 19, 25, 41, 95, 205, 475, 779, 1025, 1031, 3895, 5155, 19475, 19589, 25775, 42271, 97945, 211355, 489725, 803149, 1056775, 4015745, 20078725]

約数ペア:

[(1, 20078725), (5, 4015745), (19, 1056775), (25, 803149), (41, 489725), (95, 211355), (205, 97945), (475, 42271), (779, 25775), (1025, 19589), (1031, 19475), (3895, 5155)]