20845475

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5179}}^1$

素因数の和:5219

約数の個数: 24

約数和(自身を含む): 30831360

約数和(自身を除く): 9985885

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5179, 25895, 36253, 119117, 129475, 181265, 595585, 833819, 906325, 2977925, 4169095, 20845475]

約数ペア:

[(1, 20845475), (5, 4169095), (7, 2977925), (23, 906325), (25, 833819), (35, 595585), (115, 181265), (161, 129475), (175, 119117), (575, 36253), (805, 25895), (4025, 5179)]