77748880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1667}}^1$

素因数の和:1744

約数の個数: 80

約数和(自身を含む): 201040704

約数和(自身を除く): 123291824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 530, 583, 848, 880, 1060, 1166, 1667, 2120, 2332, 2915, 3334, 4240, 4664, 5830, 6668, 8335, 9328, 11660, 13336, 16670, 18337, 23320, 26672, 33340, 36674, 46640, 66680, 73348, 88351, 91685, 133360, 146696, 176702, 183370, 293392, 353404, 366740, 441755, 706808, 733480, 883510, 971861, 1413616, 1466960, 1767020, 1943722, 3534040, 3887444, 4859305, 7068080, 7774888, 9718610, 15549776, 19437220, 38874440, 77748880]

約数ペア:

[(1, 77748880), (2, 38874440), (4, 19437220), (5, 15549776), (8, 9718610), (10, 7774888), (11, 7068080), (16, 4859305), (20, 3887444), (22, 3534040), (40, 1943722), (44, 1767020), (53, 1466960), (55, 1413616), (80, 971861), (88, 883510), (106, 733480), (110, 706808), (176, 441755), (212, 366740), (220, 353404), (265, 293392), (424, 183370), (440, 176702), (530, 146696), (583, 133360), (848, 91685), (880, 88351), (1060, 73348), (1166, 66680), (1667, 46640), (2120, 36674), (2332, 33340), (2915, 26672), (3334, 23320), (4240, 18337), (4664, 16670), (5830, 13336), (6668, 11660), (8335, 9328)]