12968680

素因数分解:

$2^3\times 5^1\times {\mathrm{324217}}^1$

素因数の和:324228

約数の個数: 16

約数和(自身を含む): 29179620

約数和(自身を除く): 16210940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 324217, 648434, 1296868, 1621085, 2593736, 3242170, 6484340, 12968680]

約数ペア:

[(1, 12968680), (2, 6484340), (4, 3242170), (5, 2593736), (8, 1621085), (10, 1296868), (20, 648434), (40, 324217)]