55128680

素因数分解:

$2^3\times 5^1\times {\mathrm{1378217}}^1$

素因数の和:1378228

約数の個数: 16

約数和(自身を含む): 124039620

約数和(自身を除く): 68910940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1378217, 2756434, 5512868, 6891085, 11025736, 13782170, 27564340, 55128680]

約数ペア:

[(1, 55128680), (2, 27564340), (4, 13782170), (5, 11025736), (8, 6891085), (10, 5512868), (20, 2756434), (40, 1378217)]