257736960

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1761

約数の個数: 216

約数和(自身を含む): 960896664

約数和(自身を除く): 703159704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 576, 585, 624, 640, 720, 768, 780, 832, 936, 960, 1040, 1152, 1170, 1248, 1280, 1440, 1560, 1664, 1721, 1872, 1920, 2080, 2304, 2340, 2496, 2880, 3120, 3328, 3442, 3744, 3840, 4160, 4680, 4992, 5163, 5760, 6240, 6884, 7488, 8320, 8605, 9360, 9984, 10326, 11520, 12480, 13768, 14976, 15489, 16640, 17210, 18720, 20652, 22373, 24960, 25815, 27536, 29952, 30978, 34420, 37440, 41304, 44746, 49920, 51630, 55072, 61956, 67119, 68840, 74880, 77445, 82608, 89492, 103260, 110144, 111865, 123912, 134238, 137680, 149760, 154890, 165216, 178984, 201357, 206520, 220288, 223730, 247824, 268476, 275360, 309780, 330432, 335595, 357968, 402714, 413040, 440576, 447460, 495648, 536952, 550720, 619560, 660864, 671190, 715936, 805428, 826080, 894920, 991296, 1006785, 1073904, 1101440, 1239120, 1321728, 1342380, 1431872, 1610856, 1652160, 1789840, 1982592, 2013570, 2147808, 2202880, 2478240, 2684760, 2863744, 3221712, 3304320, 3579680, 3965184, 4027140, 4295616, 4956480, 5369520, 5727488, 6443424, 6608640, 7159360, 8054280, 8591232, 9912960, 10739040, 12886848, 14318720, 16108560, 17182464, 19825920, 21478080, 25773696, 28637440, 32217120, 42956160, 51547392, 64434240, 85912320, 128868480, 257736960]

約数ペア:

[(1, 257736960), (2, 128868480), (3, 85912320), (4, 64434240), (5, 51547392), (6, 42956160), (8, 32217120), (9, 28637440), (10, 25773696), (12, 21478080), (13, 19825920), (15, 17182464), (16, 16108560), (18, 14318720), (20, 12886848), (24, 10739040), (26, 9912960), (30, 8591232), (32, 8054280), (36, 7159360), (39, 6608640), (40, 6443424), (45, 5727488), (48, 5369520), (52, 4956480), (60, 4295616), (64, 4027140), (65, 3965184), (72, 3579680), (78, 3304320), (80, 3221712), (90, 2863744), (96, 2684760), (104, 2478240), (117, 2202880), (120, 2147808), (128, 2013570), (130, 1982592), (144, 1789840), (156, 1652160), (160, 1610856), (180, 1431872), (192, 1342380), (195, 1321728), (208, 1239120), (234, 1101440), (240, 1073904), (256, 1006785), (260, 991296), (288, 894920), (312, 826080), (320, 805428), (360, 715936), (384, 671190), (390, 660864), (416, 619560), (468, 550720), (480, 536952), (520, 495648), (576, 447460), (585, 440576), (624, 413040), (640, 402714), (720, 357968), (768, 335595), (780, 330432), (832, 309780), (936, 275360), (960, 268476), (1040, 247824), (1152, 223730), (1170, 220288), (1248, 206520), (1280, 201357), (1440, 178984), (1560, 165216), (1664, 154890), (1721, 149760), (1872, 137680), (1920, 134238), (2080, 123912), (2304, 111865), (2340, 110144), (2496, 103260), (2880, 89492), (3120, 82608), (3328, 77445), (3442, 74880), (3744, 68840), (3840, 67119), (4160, 61956), (4680, 55072), (4992, 51630), (5163, 49920), (5760, 44746), (6240, 41304), (6884, 37440), (7488, 34420), (8320, 30978), (8605, 29952), (9360, 27536), (9984, 25815), (10326, 24960), (11520, 22373), (12480, 20652), (13768, 18720), (14976, 17210), (15489, 16640)]