199441640

素因数分解:

$2^3\times 5^1\times {\mathrm{4986041}}^1$

素因数の和:4986052

約数の個数: 16

約数和(自身を含む): 448743780

約数和(自身を除く): 249302140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4986041, 9972082, 19944164, 24930205, 39888328, 49860410, 99720820, 199441640]

約数ペア:

[(1, 199441640), (2, 99720820), (4, 49860410), (5, 39888328), (8, 24930205), (10, 19944164), (20, 9972082), (40, 4986041)]