2080250020

素因数分解:

$2^2\times 5^1\times {\mathrm{104012501}}^1$

素因数の和:104012510

約数の個数: 12

約数和(自身を含む): 4368525084

約数和(自身を除く): 2288275064

約数列:

[1, 2, 4, 5, 10, 20, 104012501, 208025002, 416050004, 520062505, 1040125010, 2080250020]

約数ペア:

[(1, 2080250020), (2, 1040125010), (4, 520062505), (5, 416050004), (10, 208025002), (20, 104012501)]