257931520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2617}}^1$

素因数の和:2656

約数の個数: 144

約数和(自身を含む): 770571648

約数和(自身を除く): 512640128

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 280, 308, 320, 352, 385, 440, 448, 560, 616, 640, 704, 770, 880, 896, 1120, 1232, 1280, 1408, 1540, 1760, 1792, 2240, 2464, 2617, 2816, 3080, 3520, 4480, 4928, 5234, 6160, 7040, 8960, 9856, 10468, 12320, 13085, 14080, 18319, 19712, 20936, 24640, 26170, 28787, 36638, 41872, 49280, 52340, 57574, 73276, 83744, 91595, 98560, 104680, 115148, 143935, 146552, 167488, 183190, 201509, 209360, 230296, 287870, 293104, 334976, 366380, 403018, 418720, 460592, 575740, 586208, 669952, 732760, 806036, 837440, 921184, 1007545, 1151480, 1172416, 1465520, 1612072, 1674880, 1842368, 2015090, 2302960, 2344832, 2931040, 3224144, 3349760, 3684736, 4030180, 4605920, 4689664, 5862080, 6448288, 7369472, 8060360, 9211840, 11724160, 12896576, 16120720, 18423680, 23448320, 25793152, 32241440, 36847360, 51586304, 64482880, 128965760, 257931520]

約数ペア:

[(1, 257931520), (2, 128965760), (4, 64482880), (5, 51586304), (7, 36847360), (8, 32241440), (10, 25793152), (11, 23448320), (14, 18423680), (16, 16120720), (20, 12896576), (22, 11724160), (28, 9211840), (32, 8060360), (35, 7369472), (40, 6448288), (44, 5862080), (55, 4689664), (56, 4605920), (64, 4030180), (70, 3684736), (77, 3349760), (80, 3224144), (88, 2931040), (110, 2344832), (112, 2302960), (128, 2015090), (140, 1842368), (154, 1674880), (160, 1612072), (176, 1465520), (220, 1172416), (224, 1151480), (256, 1007545), (280, 921184), (308, 837440), (320, 806036), (352, 732760), (385, 669952), (440, 586208), (448, 575740), (560, 460592), (616, 418720), (640, 403018), (704, 366380), (770, 334976), (880, 293104), (896, 287870), (1120, 230296), (1232, 209360), (1280, 201509), (1408, 183190), (1540, 167488), (1760, 146552), (1792, 143935), (2240, 115148), (2464, 104680), (2617, 98560), (2816, 91595), (3080, 83744), (3520, 73276), (4480, 57574), (4928, 52340), (5234, 49280), (6160, 41872), (7040, 36638), (8960, 28787), (9856, 26170), (10468, 24640), (12320, 20936), (13085, 19712), (14080, 18319)]