128781605

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{5657}}^1$

素因数の和:5848

約数の個数: 16

約数和(自身を含む): 160913520

約数和(自身を除く): 32131915

約数列:

[1, 5, 29, 145, 157, 785, 4553, 5657, 22765, 28285, 164053, 820265, 888149, 4440745, 25756321, 128781605]

約数ペア:

[(1, 128781605), (5, 25756321), (29, 4440745), (145, 888149), (157, 820265), (785, 164053), (4553, 28285), (5657, 22765)]