19929080

素因数分解:

$2^3\times 5^1\times {\mathrm{498227}}^1$

素因数の和:498238

約数の個数: 16

約数和(自身を含む): 44840520

約数和(自身を除く): 24911440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498227, 996454, 1992908, 2491135, 3985816, 4982270, 9964540, 19929080]

約数ペア:

[(1, 19929080), (2, 9964540), (4, 4982270), (5, 3985816), (8, 2491135), (10, 1992908), (20, 996454), (40, 498227)]