80464040

素因数分解:

$2^3\times 5^1\times {\mathrm{2011601}}^1$

素因数の和:2011612

約数の個数: 16

約数和(自身を含む): 181044180

約数和(自身を除く): 100580140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2011601, 4023202, 8046404, 10058005, 16092808, 20116010, 40232020, 80464040]

約数ペア:

[(1, 80464040), (2, 40232020), (4, 20116010), (5, 16092808), (8, 10058005), (10, 8046404), (20, 4023202), (40, 2011601)]