20858125

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{1451}}^1$

素因数の和:1494

約数の個数: 20

約数和(自身を含む): 27216288

約数和(自身を除く): 6358163

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 1451, 2875, 7255, 14375, 33373, 36275, 166865, 181375, 834325, 906875, 4171625, 20858125]

約数ペア:

[(1, 20858125), (5, 4171625), (23, 906875), (25, 834325), (115, 181375), (125, 166865), (575, 36275), (625, 33373), (1451, 14375), (2875, 7255)]