128425625

素因数分解:

$5^4\times {\mathrm{53}}^1\times {\mathrm{3877}}^1$

素因数の和:3950

約数の個数: 20

約数和(自身を含む): 163550772

約数和(自身を除く): 35125147

約数列:

[1, 5, 25, 53, 125, 265, 625, 1325, 3877, 6625, 19385, 33125, 96925, 205481, 484625, 1027405, 2423125, 5137025, 25685125, 128425625]

約数ペア:

[(1, 128425625), (5, 25685125), (25, 5137025), (53, 2423125), (125, 1027405), (265, 484625), (625, 205481), (1325, 96925), (3877, 33125), (6625, 19385)]