40408040

素因数分解:

$2^3\times 5^1\times {\mathrm{1010201}}^1$

素因数の和:1010212

約数の個数: 16

約数和(自身を含む): 90918180

約数和(自身を除く): 50510140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1010201, 2020402, 4040804, 5051005, 8081608, 10102010, 20204020, 40408040]

約数ペア:

[(1, 40408040), (2, 20204020), (4, 10102010), (5, 8081608), (8, 5051005), (10, 4040804), (20, 2020402), (40, 1010201)]