51381875

素因数分解:

$5^4\times {\mathrm{229}}^1\times {\mathrm{359}}^1$

素因数の和:608

約数の個数: 20

約数和(自身を含む): 64666800

約数和(自身を除く): 13284925

約数列:

[1, 5, 25, 125, 229, 359, 625, 1145, 1795, 5725, 8975, 28625, 44875, 82211, 143125, 224375, 411055, 2055275, 10276375, 51381875]

約数ペア:

[(1, 51381875), (5, 10276375), (25, 2055275), (125, 411055), (229, 224375), (359, 143125), (625, 82211), (1145, 44875), (1795, 28625), (5725, 8975)]