81459840

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 512

約数和(自身を含む): 352512000

約数和(自身を除く): 271052160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 19, 20, 21, 22, 24, 28, 29, 30, 32, 33, 35, 38, 40, 42, 44, 48, 55, 56, 57, 58, 60, 64, 66, 70, 76, 77, 80, 84, 87, 88, 95, 96, 105, 110, 112, 114, 116, 120, 128, 132, 133, 140, 145, 152, 154, 160, 165, 168, 174, 176, 190, 192, 203, 209, 210, 220, 224, 228, 231, 232, 240, 264, 266, 280, 285, 290, 304, 308, 319, 320, 330, 336, 348, 352, 380, 384, 385, 399, 406, 418, 420, 435, 440, 448, 456, 462, 464, 480, 528, 532, 551, 560, 570, 580, 608, 609, 616, 627, 638, 640, 660, 665, 672, 696, 704, 760, 770, 798, 812, 836, 840, 870, 880, 896, 912, 924, 928, 957, 960, 1015, 1045, 1056, 1064, 1102, 1120, 1140, 1155, 1160, 1216, 1218, 1232, 1254, 1276, 1320, 1330, 1344, 1392, 1408, 1463, 1520, 1540, 1595, 1596, 1624, 1653, 1672, 1680, 1740, 1760, 1824, 1848, 1856, 1914, 1920, 1995, 2030, 2090, 2112, 2128, 2204, 2233, 2240, 2280, 2310, 2320, 2432, 2436, 2464, 2508, 2552, 2640, 2660, 2688, 2755, 2784, 2926, 3040, 3045, 3080, 3135, 3190, 3192, 3248, 3306, 3344, 3360, 3480, 3520, 3648, 3696, 3712, 3828, 3857, 3990, 4060, 4180, 4224, 4256, 4389, 4408, 4466, 4480, 4560, 4620, 4640, 4785, 4872, 4928, 5016, 5104, 5280, 5320, 5510, 5568, 5852, 6061, 6080, 6090, 6160, 6270, 6380, 6384, 6496, 6612, 6688, 6699, 6720, 6960, 7040, 7296, 7315, 7392, 7656, 7714, 7980, 8120, 8265, 8360, 8512, 8778, 8816, 8932, 9120, 9240, 9280, 9570, 9744, 9856, 10032, 10208, 10560, 10640, 11020, 11136, 11165, 11571, 11704, 12122, 12160, 12180, 12320, 12540, 12760, 12768, 12992, 13224, 13376, 13398, 13440, 13920, 14630, 14784, 15312, 15428, 15960, 16240, 16530, 16720, 17024, 17556, 17632, 17864, 18183, 18240, 18480, 18560, 19140, 19285, 19488, 20064, 20416, 21120, 21280, 21945, 22040, 22330, 23142, 23408, 24244, 24360, 24640, 25080, 25520, 25536, 25984, 26448, 26752, 26796, 27840, 29260, 29568, 30305, 30624, 30856, 31920, 32480, 33060, 33440, 33495, 35112, 35264, 35728, 36366, 36480, 36960, 38280, 38570, 38976, 40128, 40832, 42427, 42560, 43890, 44080, 44660, 46284, 46816, 48488, 48720, 49280, 50160, 51040, 51072, 52896, 53592, 55680, 57855, 58520, 60610, 61248, 61712, 63840, 64960, 66120, 66880, 66990, 70224, 70528, 71456, 72732, 73920, 76560, 77140, 77952, 80256, 84854, 85120, 87780, 88160, 89320, 90915, 92568, 93632, 96976, 97440, 100320, 102080, 105792, 107184, 115710, 117040, 121220, 122496, 123424, 127281, 127680, 129920, 132240, 133760, 133980, 140448, 142912, 145464, 147840, 153120, 154280, 169708, 175560, 176320, 178640, 181830, 185136, 187264, 193952, 194880, 200640, 204160, 211584, 212135, 214368, 231420, 234080, 242440, 246848, 254562, 255360, 264480, 267960, 280896, 285824, 290928, 306240, 308560, 339416, 351120, 352640, 357280, 363660, 370272, 387904, 389760, 401280, 424270, 428736, 462840, 468160, 484880, 493696, 509124, 528960, 535920, 561792, 581856, 612480, 617120, 636405, 678832, 702240, 714560, 727320, 740544, 775808, 848540, 857472, 925680, 936320, 969760, 1018248, 1057920, 1071840, 1163712, 1234240, 1272810, 1357664, 1404480, 1429120, 1454640, 1481088, 1697080, 1851360, 1939520, 2036496, 2143680, 2327424, 2468480, 2545620, 2715328, 2808960, 2909280, 3394160, 3702720, 3879040, 4072992, 4287360, 5091240, 5430656, 5818560, 6788320, 7405440, 8145984, 10182480, 11637120, 13576640, 16291968, 20364960, 27153280, 40729920, 81459840]

約数ペア:

[(1, 81459840), (2, 40729920), (3, 27153280), (4, 20364960), (5, 16291968), (6, 13576640), (7, 11637120), (8, 10182480), (10, 8145984), (11, 7405440), (12, 6788320), (14, 5818560), (15, 5430656), (16, 5091240), (19, 4287360), (20, 4072992), (21, 3879040), (22, 3702720), (24, 3394160), (28, 2909280), (29, 2808960), (30, 2715328), (32, 2545620), (33, 2468480), (35, 2327424), (38, 2143680), (40, 2036496), (42, 1939520), (44, 1851360), (48, 1697080), (55, 1481088), (56, 1454640), (57, 1429120), (58, 1404480), (60, 1357664), (64, 1272810), (66, 1234240), (70, 1163712), (76, 1071840), (77, 1057920), (80, 1018248), (84, 969760), (87, 936320), (88, 925680), (95, 857472), (96, 848540), (105, 775808), (110, 740544), (112, 727320), (114, 714560), (116, 702240), (120, 678832), (128, 636405), (132, 617120), (133, 612480), (140, 581856), (145, 561792), (152, 535920), (154, 528960), (160, 509124), (165, 493696), (168, 484880), (174, 468160), (176, 462840), (190, 428736), (192, 424270), (203, 401280), (209, 389760), (210, 387904), (220, 370272), (224, 363660), (228, 357280), (231, 352640), (232, 351120), (240, 339416), (264, 308560), (266, 306240), (280, 290928), (285, 285824), (290, 280896), (304, 267960), (308, 264480), (319, 255360), (320, 254562), (330, 246848), (336, 242440), (348, 234080), (352, 231420), (380, 214368), (384, 212135), (385, 211584), (399, 204160), (406, 200640), (418, 194880), (420, 193952), (435, 187264), (440, 185136), (448, 181830), (456, 178640), (462, 176320), (464, 175560), (480, 169708), (528, 154280), (532, 153120), (551, 147840), (560, 145464), (570, 142912), (580, 140448), (608, 133980), (609, 133760), (616, 132240), (627, 129920), (638, 127680), (640, 127281), (660, 123424), (665, 122496), (672, 121220), (696, 117040), (704, 115710), (760, 107184), (770, 105792), (798, 102080), (812, 100320), (836, 97440), (840, 96976), (870, 93632), (880, 92568), (896, 90915), (912, 89320), (924, 88160), (928, 87780), (957, 85120), (960, 84854), (1015, 80256), (1045, 77952), (1056, 77140), (1064, 76560), (1102, 73920), (1120, 72732), (1140, 71456), (1155, 70528), (1160, 70224), (1216, 66990), (1218, 66880), (1232, 66120), (1254, 64960), (1276, 63840), (1320, 61712), (1330, 61248), (1344, 60610), (1392, 58520), (1408, 57855), (1463, 55680), (1520, 53592), (1540, 52896), (1595, 51072), (1596, 51040), (1624, 50160), (1653, 49280), (1672, 48720), (1680, 48488), (1740, 46816), (1760, 46284), (1824, 44660), (1848, 44080), (1856, 43890), (1914, 42560), (1920, 42427), (1995, 40832), (2030, 40128), (2090, 38976), (2112, 38570), (2128, 38280), (2204, 36960), (2233, 36480), (2240, 36366), (2280, 35728), (2310, 35264), (2320, 35112), (2432, 33495), (2436, 33440), (2464, 33060), (2508, 32480), (2552, 31920), (2640, 30856), (2660, 30624), (2688, 30305), (2755, 29568), (2784, 29260), (2926, 27840), (3040, 26796), (3045, 26752), (3080, 26448), (3135, 25984), (3190, 25536), (3192, 25520), (3248, 25080), (3306, 24640), (3344, 24360), (3360, 24244), (3480, 23408), (3520, 23142), (3648, 22330), (3696, 22040), (3712, 21945), (3828, 21280), (3857, 21120), (3990, 20416), (4060, 20064), (4180, 19488), (4224, 19285), (4256, 19140), (4389, 18560), (4408, 18480), (4466, 18240), (4480, 18183), (4560, 17864), (4620, 17632), (4640, 17556), (4785, 17024), (4872, 16720), (4928, 16530), (5016, 16240), (5104, 15960), (5280, 15428), (5320, 15312), (5510, 14784), (5568, 14630), (5852, 13920), (6061, 13440), (6080, 13398), (6090, 13376), (6160, 13224), (6270, 12992), (6380, 12768), (6384, 12760), (6496, 12540), (6612, 12320), (6688, 12180), (6699, 12160), (6720, 12122), (6960, 11704), (7040, 11571), (7296, 11165), (7315, 11136), (7392, 11020), (7656, 10640), (7714, 10560), (7980, 10208), (8120, 10032), (8265, 9856), (8360, 9744), (8512, 9570), (8778, 9280), (8816, 9240), (8932, 9120)]