206871280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 240

約数和(自身を含む): 626959872

約数和(自身を除く): 420088592

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 43, 44, 55, 56, 70, 71, 77, 80, 86, 88, 110, 112, 121, 140, 142, 154, 172, 176, 215, 220, 242, 280, 284, 301, 308, 344, 355, 385, 430, 440, 473, 484, 497, 560, 568, 602, 605, 616, 688, 710, 770, 781, 847, 860, 880, 946, 968, 994, 1136, 1204, 1210, 1232, 1420, 1505, 1540, 1562, 1694, 1720, 1892, 1936, 1988, 2365, 2408, 2420, 2485, 2840, 3010, 3053, 3080, 3124, 3311, 3388, 3440, 3784, 3905, 3976, 4235, 4730, 4816, 4840, 4970, 5203, 5467, 5680, 6020, 6106, 6160, 6248, 6622, 6776, 7568, 7810, 7952, 8470, 8591, 9460, 9680, 9940, 10406, 10934, 12040, 12212, 12496, 13244, 13552, 15265, 15620, 16555, 16940, 17182, 18920, 19880, 20812, 21371, 21868, 24080, 24424, 26015, 26488, 27335, 30530, 31240, 33110, 33583, 33880, 34364, 36421, 37840, 39760, 41624, 42742, 42955, 43736, 48848, 52030, 52976, 54670, 60137, 61060, 62480, 66220, 67166, 67760, 68728, 72842, 83248, 85484, 85910, 87472, 104060, 106855, 109340, 120274, 122120, 132440, 134332, 137456, 145684, 167915, 170968, 171820, 182105, 208120, 213710, 218680, 235081, 240548, 244240, 264880, 268664, 291368, 300685, 335830, 341936, 343640, 364210, 369413, 416240, 427420, 437360, 470162, 481096, 537328, 582736, 601370, 671660, 687280, 728420, 738826, 854840, 940324, 962192, 1175405, 1202740, 1343320, 1456840, 1477652, 1709680, 1847065, 1880648, 2350810, 2405480, 2585891, 2686640, 2913680, 2955304, 3694130, 3761296, 4701620, 4810960, 5171782, 5910608, 7388260, 9403240, 10343564, 12929455, 14776520, 18806480, 20687128, 25858910, 29553040, 41374256, 51717820, 103435640, 206871280]

約数ペア:

[(1, 206871280), (2, 103435640), (4, 51717820), (5, 41374256), (7, 29553040), (8, 25858910), (10, 20687128), (11, 18806480), (14, 14776520), (16, 12929455), (20, 10343564), (22, 9403240), (28, 7388260), (35, 5910608), (40, 5171782), (43, 4810960), (44, 4701620), (55, 3761296), (56, 3694130), (70, 2955304), (71, 2913680), (77, 2686640), (80, 2585891), (86, 2405480), (88, 2350810), (110, 1880648), (112, 1847065), (121, 1709680), (140, 1477652), (142, 1456840), (154, 1343320), (172, 1202740), (176, 1175405), (215, 962192), (220, 940324), (242, 854840), (280, 738826), (284, 728420), (301, 687280), (308, 671660), (344, 601370), (355, 582736), (385, 537328), (430, 481096), (440, 470162), (473, 437360), (484, 427420), (497, 416240), (560, 369413), (568, 364210), (602, 343640), (605, 341936), (616, 335830), (688, 300685), (710, 291368), (770, 268664), (781, 264880), (847, 244240), (860, 240548), (880, 235081), (946, 218680), (968, 213710), (994, 208120), (1136, 182105), (1204, 171820), (1210, 170968), (1232, 167915), (1420, 145684), (1505, 137456), (1540, 134332), (1562, 132440), (1694, 122120), (1720, 120274), (1892, 109340), (1936, 106855), (1988, 104060), (2365, 87472), (2408, 85910), (2420, 85484), (2485, 83248), (2840, 72842), (3010, 68728), (3053, 67760), (3080, 67166), (3124, 66220), (3311, 62480), (3388, 61060), (3440, 60137), (3784, 54670), (3905, 52976), (3976, 52030), (4235, 48848), (4730, 43736), (4816, 42955), (4840, 42742), (4970, 41624), (5203, 39760), (5467, 37840), (5680, 36421), (6020, 34364), (6106, 33880), (6160, 33583), (6248, 33110), (6622, 31240), (6776, 30530), (7568, 27335), (7810, 26488), (7952, 26015), (8470, 24424), (8591, 24080), (9460, 21868), (9680, 21371), (9940, 20812), (10406, 19880), (10934, 18920), (12040, 17182), (12212, 16940), (12496, 16555), (13244, 15620), (13552, 15265)]