19406440

素因数分解:

$2^3\times 5^1\times {\mathrm{485161}}^1$

素因数の和:485172

約数の個数: 16

約数和(自身を含む): 43664580

約数和(自身を除く): 24258140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 485161, 970322, 1940644, 2425805, 3881288, 4851610, 9703220, 19406440]

約数ペア:

[(1, 19406440), (2, 9703220), (4, 4851610), (5, 3881288), (8, 2425805), (10, 1940644), (20, 970322), (40, 485161)]