28518125

素因数分解:

$5^4\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:566

約数の個数: 20

約数和(自身を含む): 36063456

約数和(自身を除く): 7545331

約数列:

[1, 5, 25, 103, 125, 443, 515, 625, 2215, 2575, 11075, 12875, 45629, 55375, 64375, 228145, 276875, 1140725, 5703625, 28518125]

約数ペア:

[(1, 28518125), (5, 5703625), (25, 1140725), (103, 276875), (125, 228145), (443, 64375), (515, 55375), (625, 45629), (2215, 12875), (2575, 11075)]