2019945640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1174387}}^1$

素因数の和:1174441

約数の個数: 32

約数和(自身を含む): 4650576480

約数和(自身を除く): 2630630840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1174387, 2348774, 4697548, 5871935, 9395096, 11743870, 23487740, 46975480, 50498641, 100997282, 201994564, 252493205, 403989128, 504986410, 1009972820, 2019945640]

約数ペア:

[(1, 2019945640), (2, 1009972820), (4, 504986410), (5, 403989128), (8, 252493205), (10, 201994564), (20, 100997282), (40, 50498641), (43, 46975480), (86, 23487740), (172, 11743870), (215, 9395096), (344, 5871935), (430, 4697548), (860, 2348774), (1720, 1174387)]