20043875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{3911}}^1$

素因数の和:3967

約数の個数: 16

約数和(自身を含む): 25631424

約数和(自身を除く): 5587549

約数列:

[1, 5, 25, 41, 125, 205, 1025, 3911, 5125, 19555, 97775, 160351, 488875, 801755, 4008775, 20043875]

約数ペア:

[(1, 20043875), (5, 4008775), (25, 801755), (41, 488875), (125, 160351), (205, 97775), (1025, 19555), (3911, 5125)]