20180860028

素因数分解:

$2^2\times 7^1\times {\mathrm{720745001}}^1$

素因数の和:720745012

約数の個数: 12

約数和(自身を含む): 40361720112

約数和(自身を除く): 20180860084

約数列:

[1, 2, 4, 7, 14, 28, 720745001, 1441490002, 2882980004, 5045215007, 10090430014, 20180860028]

約数ペア:

[(1, 20180860028), (2, 10090430014), (4, 5045215007), (7, 2882980004), (14, 1441490002), (28, 720745001)]