20802180028

素因数分解:

$2^2\times 7^1\times {\mathrm{742935001}}^1$

素因数の和:742935012

約数の個数: 12

約数和(自身を含む): 41604360112

約数和(自身を除く): 20802180084

約数列:

[1, 2, 4, 7, 14, 28, 742935001, 1485870002, 2971740004, 5200545007, 10401090014, 20802180028]

約数ペア:

[(1, 20802180028), (2, 10401090014), (4, 5200545007), (7, 2971740004), (14, 1485870002), (28, 742935001)]