12966440

素因数分解:

$2^3\times 5^1\times {\mathrm{324161}}^1$

素因数の和:324172

約数の個数: 16

約数和(自身を含む): 29174580

約数和(自身を除く): 16208140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 324161, 648322, 1296644, 1620805, 2593288, 3241610, 6483220, 12966440]

約数ペア:

[(1, 12966440), (2, 6483220), (4, 3241610), (5, 2593288), (8, 1620805), (10, 1296644), (20, 648322), (40, 324161)]