20005375

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{947}}^1$

素因数の和:988

約数の個数: 24

約数和(自身を含む): 27063504

約数和(自身を除く): 7058129

約数列:

[1, 5, 13, 25, 65, 125, 169, 325, 845, 947, 1625, 4225, 4735, 12311, 21125, 23675, 61555, 118375, 160043, 307775, 800215, 1538875, 4001075, 20005375]

約数ペア:

[(1, 20005375), (5, 4001075), (13, 1538875), (25, 800215), (65, 307775), (125, 160043), (169, 118375), (325, 61555), (845, 23675), (947, 21125), (1625, 12311), (4225, 4735)]