20455625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{1423}}^1$

素因数の和:1466

約数の個数: 20

約数和(自身を含む): 26691456

約数和(自身を除く): 6235831

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 1423, 2875, 7115, 14375, 32729, 35575, 163645, 177875, 818225, 889375, 4091125, 20455625]

約数ペア:

[(1, 20455625), (5, 4091125), (23, 889375), (25, 818225), (115, 177875), (125, 163645), (575, 35575), (625, 32729), (1423, 14375), (2875, 7115)]