15920020

素因数分解:

$2^2\times 5^1\times {\mathrm{796001}}^1$

素因数の和:796010

約数の個数: 12

約数和(自身を含む): 33432084

約数和(自身を除く): 17512064

約数列:

[1, 2, 4, 5, 10, 20, 796001, 1592002, 3184004, 3980005, 7960010, 15920020]

約数ペア:

[(1, 15920020), (2, 7960010), (4, 3980005), (5, 3184004), (10, 1592002), (20, 796001)]