31066640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 80

約数和(自身を含む): 80726976

約数和(自身を除く): 49660336

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 821, 860, 880, 946, 1642, 1720, 1892, 2365, 3284, 3440, 3784, 4105, 4730, 6568, 7568, 8210, 9031, 9460, 13136, 16420, 18062, 18920, 32840, 35303, 36124, 37840, 45155, 65680, 70606, 72248, 90310, 141212, 144496, 176515, 180620, 282424, 353030, 361240, 388333, 564848, 706060, 722480, 776666, 1412120, 1553332, 1941665, 2824240, 3106664, 3883330, 6213328, 7766660, 15533320, 31066640]

約数ペア:

[(1, 31066640), (2, 15533320), (4, 7766660), (5, 6213328), (8, 3883330), (10, 3106664), (11, 2824240), (16, 1941665), (20, 1553332), (22, 1412120), (40, 776666), (43, 722480), (44, 706060), (55, 564848), (80, 388333), (86, 361240), (88, 353030), (110, 282424), (172, 180620), (176, 176515), (215, 144496), (220, 141212), (344, 90310), (430, 72248), (440, 70606), (473, 65680), (688, 45155), (821, 37840), (860, 36124), (880, 35303), (946, 32840), (1642, 18920), (1720, 18062), (1892, 16420), (2365, 13136), (3284, 9460), (3440, 9031), (3784, 8210), (4105, 7568), (4730, 6568)]