12655640

素因数分解:

$2^3\times 5^1\times {\mathrm{316391}}^1$

素因数の和:316402

約数の個数: 16

約数和(自身を含む): 28475280

約数和(自身を除く): 15819640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 316391, 632782, 1265564, 1581955, 2531128, 3163910, 6327820, 12655640]

約数ペア:

[(1, 12655640), (2, 6327820), (4, 3163910), (5, 2531128), (8, 1581955), (10, 1265564), (20, 632782), (40, 316391)]