20201705

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1811}}^1$

素因数の和:1936

約数の個数: 16

約数和(自身を含む): 25570944

約数和(自身を除く): 5369239

約数列:

[1, 5, 23, 97, 115, 485, 1811, 2231, 9055, 11155, 41653, 175667, 208265, 878335, 4040341, 20201705]

約数ペア:

[(1, 20201705), (5, 4040341), (23, 878335), (97, 208265), (115, 175667), (485, 41653), (1811, 11155), (2231, 9055)]