290262020

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{19963}}^1$

素因数の和:20699

約数の個数: 24

約数和(自身を含む): 610419264

約数和(自身を除く): 320157244

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2908, 3635, 7270, 14540, 19963, 39926, 79852, 99815, 199630, 399260, 14513101, 29026202, 58052404, 72565505, 145131010, 290262020]

約数ペア:

[(1, 290262020), (2, 145131010), (4, 72565505), (5, 58052404), (10, 29026202), (20, 14513101), (727, 399260), (1454, 199630), (2908, 99815), (3635, 79852), (7270, 39926), (14540, 19963)]