66956875

素因数分解:

$5^4\times {\mathrm{149}}^1\times {\mathrm{719}}^1$

素因数の和:888

約数の個数: 20

約数和(自身を含む): 84348000

約数和(自身を除く): 17391125

約数列:

[1, 5, 25, 125, 149, 625, 719, 745, 3595, 3725, 17975, 18625, 89875, 93125, 107131, 449375, 535655, 2678275, 13391375, 66956875]

約数ペア:

[(1, 66956875), (5, 13391375), (25, 2678275), (125, 535655), (149, 449375), (625, 107131), (719, 93125), (745, 89875), (3595, 18625), (3725, 17975)]