206520040

素因数分解:

$2^3\times 5^1\times {\mathrm{5163001}}^1$

素因数の和:5163012

約数の個数: 16

約数和(自身を含む): 464670180

約数和(自身を除く): 258150140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5163001, 10326002, 20652004, 25815005, 41304008, 51630010, 103260020, 206520040]

約数ペア:

[(1, 206520040), (2, 103260020), (4, 51630010), (5, 41304008), (8, 25815005), (10, 20652004), (20, 10326002), (40, 5163001)]