209225285

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{20323}}^1$

素因数の和:20428

約数の個数: 16

約数和(自身を含む): 263399040

約数和(自身を除く): 54173755

約数列:

[1, 5, 29, 71, 145, 355, 2059, 10295, 20323, 101615, 589367, 1442933, 2946835, 7214665, 41845057, 209225285]

約数ペア:

[(1, 209225285), (5, 41845057), (29, 7214665), (71, 2946835), (145, 1442933), (355, 589367), (2059, 101615), (10295, 20323)]