20247475

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{1531}}^1$

素因数の和:1587

約数の個数: 18

約数和(自身を含む): 26263076

約数和(自身を除く): 6015601

約数列:

[1, 5, 23, 25, 115, 529, 575, 1531, 2645, 7655, 13225, 35213, 38275, 176065, 809899, 880325, 4049495, 20247475]

約数ペア:

[(1, 20247475), (5, 4049495), (23, 880325), (25, 809899), (115, 176065), (529, 38275), (575, 35213), (1531, 13225), (2645, 7655)]