4001075

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{947}}^1$

素因数の和:983

約数の個数: 18

約数和(自身を含む): 5378004

約数和(自身を除く): 1376929

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 947, 4225, 4735, 12311, 23675, 61555, 160043, 307775, 800215, 4001075]

約数ペア:

[(1, 4001075), (5, 800215), (13, 307775), (25, 160043), (65, 61555), (169, 23675), (325, 12311), (845, 4735), (947, 4225)]