291224560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1663}}^1$

素因数の和:1886

約数の個数: 80

約数和(自身を含む): 742809600

約数和(自身を除く): 451585040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 199, 220, 398, 440, 796, 880, 995, 1592, 1663, 1990, 2189, 3184, 3326, 3980, 4378, 6652, 7960, 8315, 8756, 10945, 13304, 15920, 16630, 17512, 18293, 21890, 26608, 33260, 35024, 36586, 43780, 66520, 73172, 87560, 91465, 133040, 146344, 175120, 182930, 292688, 330937, 365860, 661874, 731720, 1323748, 1463440, 1654685, 2647496, 3309370, 3640307, 5294992, 6618740, 7280614, 13237480, 14561228, 18201535, 26474960, 29122456, 36403070, 58244912, 72806140, 145612280, 291224560]

約数ペア:

[(1, 291224560), (2, 145612280), (4, 72806140), (5, 58244912), (8, 36403070), (10, 29122456), (11, 26474960), (16, 18201535), (20, 14561228), (22, 13237480), (40, 7280614), (44, 6618740), (55, 5294992), (80, 3640307), (88, 3309370), (110, 2647496), (176, 1654685), (199, 1463440), (220, 1323748), (398, 731720), (440, 661874), (796, 365860), (880, 330937), (995, 292688), (1592, 182930), (1663, 175120), (1990, 146344), (2189, 133040), (3184, 91465), (3326, 87560), (3980, 73172), (4378, 66520), (6652, 43780), (7960, 36586), (8315, 35024), (8756, 33260), (10945, 26608), (13304, 21890), (15920, 18293), (16630, 17512)]