2989385960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{34141}}^1$

素因数の和:34362

約数の個数: 64

約数和(自身を含む): 7374672000

約数和(自身を除く): 4385286040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 398, 440, 796, 995, 1592, 1990, 2189, 3980, 4378, 7960, 8756, 10945, 17512, 21890, 34141, 43780, 68282, 87560, 136564, 170705, 273128, 341410, 375551, 682820, 751102, 1365640, 1502204, 1877755, 3004408, 3755510, 6794059, 7511020, 13588118, 15022040, 27176236, 33970295, 54352472, 67940590, 74734649, 135881180, 149469298, 271762360, 298938596, 373673245, 597877192, 747346490, 1494692980, 2989385960]

約数ペア:

[(1, 2989385960), (2, 1494692980), (4, 747346490), (5, 597877192), (8, 373673245), (10, 298938596), (11, 271762360), (20, 149469298), (22, 135881180), (40, 74734649), (44, 67940590), (55, 54352472), (88, 33970295), (110, 27176236), (199, 15022040), (220, 13588118), (398, 7511020), (440, 6794059), (796, 3755510), (995, 3004408), (1592, 1877755), (1990, 1502204), (2189, 1365640), (3980, 751102), (4378, 682820), (7960, 375551), (8756, 341410), (10945, 273128), (17512, 170705), (21890, 136564), (34141, 87560), (43780, 68282)]