12920825

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{977}}^1$

素因数の和:1033

約数の個数: 18

約数和(自身を含む): 16765854

約数和(自身を除く): 3845029

約数列:

[1, 5, 23, 25, 115, 529, 575, 977, 2645, 4885, 13225, 22471, 24425, 112355, 516833, 561775, 2584165, 12920825]

約数ペア:

[(1, 12920825), (5, 2584165), (23, 561775), (25, 516833), (115, 112355), (529, 24425), (575, 22471), (977, 13225), (2645, 4885)]