123211640

素因数分解:

$2^3\times 5^1\times {\mathrm{3080291}}^1$

素因数の和:3080302

約数の個数: 16

約数和(自身を含む): 277226280

約数和(自身を除く): 154014640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3080291, 6160582, 12321164, 15401455, 24642328, 30802910, 61605820, 123211640]

約数ペア:

[(1, 123211640), (2, 61605820), (4, 30802910), (5, 24642328), (8, 15401455), (10, 12321164), (20, 6160582), (40, 3080291)]