7766660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 18228672

約数和(自身を除く): 10462012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 821, 860, 946, 1642, 1892, 2365, 3284, 4105, 4730, 8210, 9031, 9460, 16420, 18062, 35303, 36124, 45155, 70606, 90310, 141212, 176515, 180620, 353030, 388333, 706060, 776666, 1553332, 1941665, 3883330, 7766660]

約数ペア:

[(1, 7766660), (2, 3883330), (4, 1941665), (5, 1553332), (10, 776666), (11, 706060), (20, 388333), (22, 353030), (43, 180620), (44, 176515), (55, 141212), (86, 90310), (110, 70606), (172, 45155), (215, 36124), (220, 35303), (430, 18062), (473, 16420), (821, 9460), (860, 9031), (946, 8210), (1642, 4730), (1892, 4105), (2365, 3284)]