56151875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{6911}}^1$

素因数の和:6944

約数の個数: 20

約数和(自身を含む): 75575808

約数和(自身を除く): 19423933

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 6911, 8125, 34555, 89843, 172775, 449215, 863875, 2246075, 4319375, 11230375, 56151875]

約数ペア:

[(1, 56151875), (5, 11230375), (13, 4319375), (25, 2246075), (65, 863875), (125, 449215), (325, 172775), (625, 89843), (1625, 34555), (6911, 8125)]