20681418240

素因数分解:

$2^9\times 3^2\times 5^1\times 7^3\times {\mathrm{2617}}^1$

素因数の和:2667

約数の個数: 480

約数和(自身を含む): 83560276800

約数和(自身を除く): 62878858560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 128, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 256, 280, 288, 294, 315, 320, 336, 343, 360, 384, 392, 420, 441, 448, 480, 490, 504, 512, 560, 576, 588, 630, 640, 672, 686, 720, 735, 768, 784, 840, 882, 896, 960, 980, 1008, 1029, 1120, 1152, 1176, 1260, 1280, 1344, 1372, 1440, 1470, 1536, 1568, 1680, 1715, 1764, 1792, 1920, 1960, 2016, 2058, 2205, 2240, 2304, 2352, 2520, 2560, 2617, 2688, 2744, 2880, 2940, 3087, 3136, 3360, 3430, 3528, 3584, 3840, 3920, 4032, 4116, 4410, 4480, 4608, 4704, 5040, 5145, 5234, 5376, 5488, 5760, 5880, 6174, 6272, 6720, 6860, 7056, 7680, 7840, 7851, 8064, 8232, 8820, 8960, 9408, 10080, 10290, 10468, 10752, 10976, 11520, 11760, 12348, 12544, 13085, 13440, 13720, 14112, 15435, 15680, 15702, 16128, 16464, 17640, 17920, 18319, 18816, 20160, 20580, 20936, 21952, 23040, 23520, 23553, 24696, 25088, 26170, 26880, 27440, 28224, 30870, 31360, 31404, 32256, 32928, 35280, 36638, 37632, 39255, 40320, 41160, 41872, 43904, 47040, 47106, 49392, 52340, 53760, 54880, 54957, 56448, 61740, 62720, 62808, 65856, 70560, 73276, 75264, 78510, 80640, 82320, 83744, 87808, 91595, 94080, 94212, 98784, 104680, 109760, 109914, 112896, 117765, 123480, 125440, 125616, 128233, 131712, 141120, 146552, 157020, 161280, 164640, 164871, 167488, 175616, 183190, 188160, 188424, 197568, 209360, 219520, 219828, 225792, 235530, 246960, 251232, 256466, 263424, 274785, 282240, 293104, 314040, 329280, 329742, 334976, 366380, 376320, 376848, 384699, 395136, 418720, 439040, 439656, 471060, 493920, 502464, 512932, 526848, 549570, 564480, 586208, 628080, 641165, 658560, 659484, 669952, 732760, 753696, 769398, 790272, 824355, 837440, 878080, 879312, 897631, 942120, 987840, 1004928, 1025864, 1099140, 1128960, 1154097, 1172416, 1256160, 1282330, 1317120, 1318968, 1339904, 1465520, 1507392, 1538796, 1580544, 1648710, 1674880, 1758624, 1795262, 1884240, 1923495, 1975680, 2009856, 2051728, 2198280, 2308194, 2344832, 2512320, 2564660, 2634240, 2637936, 2692893, 2931040, 3014784, 3077592, 3297420, 3349760, 3517248, 3590524, 3768480, 3846990, 3951360, 4019712, 4103456, 4396560, 4488155, 4616388, 4689664, 5024640, 5129320, 5275872, 5385786, 5770485, 5862080, 6029568, 6155184, 6594840, 6699520, 7034496, 7181048, 7536960, 7693980, 7902720, 8078679, 8206912, 8793120, 8976310, 9232776, 9379328, 10049280, 10258640, 10551744, 10771572, 11540970, 11724160, 12059136, 12310368, 13189680, 13464465, 14068992, 14362096, 15073920, 15387960, 16157358, 16413824, 17586240, 17952620, 18465552, 20098560, 20517280, 21103488, 21543144, 23081940, 23448320, 24620736, 26379360, 26928930, 28137984, 28724192, 30147840, 30775920, 32314716, 32827648, 35172480, 35905240, 36931104, 40393395, 41034560, 42206976, 43086288, 46163880, 46896640, 49241472, 52758720, 53857860, 57448384, 60295680, 61551840, 64629432, 65655296, 70344960, 71810480, 73862208, 80786790, 82069120, 84413952, 86172576, 92327760, 98482944, 105517440, 107715720, 114896768, 123103680, 129258864, 140689920, 143620960, 147724416, 161573580, 164138240, 172345152, 184655520, 196965888, 211034880, 215431440, 229793536, 246207360, 258517728, 287241920, 295448832, 323147160, 328276480, 344690304, 369311040, 422069760, 430862880, 459587072, 492414720, 517035456, 574483840, 590897664, 646294320, 689380608, 738622080, 861725760, 984829440, 1034070912, 1148967680, 1292588640, 1378761216, 1477244160, 1723451520, 2068141824, 2297935360, 2585177280, 2954488320, 3446903040, 4136283648, 5170354560, 6893806080, 10340709120, 20681418240]

約数ペア:

[(1, 20681418240), (2, 10340709120), (3, 6893806080), (4, 5170354560), (5, 4136283648), (6, 3446903040), (7, 2954488320), (8, 2585177280), (9, 2297935360), (10, 2068141824), (12, 1723451520), (14, 1477244160), (15, 1378761216), (16, 1292588640), (18, 1148967680), (20, 1034070912), (21, 984829440), (24, 861725760), (28, 738622080), (30, 689380608), (32, 646294320), (35, 590897664), (36, 574483840), (40, 517035456), (42, 492414720), (45, 459587072), (48, 430862880), (49, 422069760), (56, 369311040), (60, 344690304), (63, 328276480), (64, 323147160), (70, 295448832), (72, 287241920), (80, 258517728), (84, 246207360), (90, 229793536), (96, 215431440), (98, 211034880), (105, 196965888), (112, 184655520), (120, 172345152), (126, 164138240), (128, 161573580), (140, 147724416), (144, 143620960), (147, 140689920), (160, 129258864), (168, 123103680), (180, 114896768), (192, 107715720), (196, 105517440), (210, 98482944), (224, 92327760), (240, 86172576), (245, 84413952), (252, 82069120), (256, 80786790), (280, 73862208), (288, 71810480), (294, 70344960), (315, 65655296), (320, 64629432), (336, 61551840), (343, 60295680), (360, 57448384), (384, 53857860), (392, 52758720), (420, 49241472), (441, 46896640), (448, 46163880), (480, 43086288), (490, 42206976), (504, 41034560), (512, 40393395), (560, 36931104), (576, 35905240), (588, 35172480), (630, 32827648), (640, 32314716), (672, 30775920), (686, 30147840), (720, 28724192), (735, 28137984), (768, 26928930), (784, 26379360), (840, 24620736), (882, 23448320), (896, 23081940), (960, 21543144), (980, 21103488), (1008, 20517280), (1029, 20098560), (1120, 18465552), (1152, 17952620), (1176, 17586240), (1260, 16413824), (1280, 16157358), (1344, 15387960), (1372, 15073920), (1440, 14362096), (1470, 14068992), (1536, 13464465), (1568, 13189680), (1680, 12310368), (1715, 12059136), (1764, 11724160), (1792, 11540970), (1920, 10771572), (1960, 10551744), (2016, 10258640), (2058, 10049280), (2205, 9379328), (2240, 9232776), (2304, 8976310), (2352, 8793120), (2520, 8206912), (2560, 8078679), (2617, 7902720), (2688, 7693980), (2744, 7536960), (2880, 7181048), (2940, 7034496), (3087, 6699520), (3136, 6594840), (3360, 6155184), (3430, 6029568), (3528, 5862080), (3584, 5770485), (3840, 5385786), (3920, 5275872), (4032, 5129320), (4116, 5024640), (4410, 4689664), (4480, 4616388), (4608, 4488155), (4704, 4396560), (5040, 4103456), (5145, 4019712), (5234, 3951360), (5376, 3846990), (5488, 3768480), (5760, 3590524), (5880, 3517248), (6174, 3349760), (6272, 3297420), (6720, 3077592), (6860, 3014784), (7056, 2931040), (7680, 2692893), (7840, 2637936), (7851, 2634240), (8064, 2564660), (8232, 2512320), (8820, 2344832), (8960, 2308194), (9408, 2198280), (10080, 2051728), (10290, 2009856), (10468, 1975680), (10752, 1923495), (10976, 1884240), (11520, 1795262), (11760, 1758624), (12348, 1674880), (12544, 1648710), (13085, 1580544), (13440, 1538796), (13720, 1507392), (14112, 1465520), (15435, 1339904), (15680, 1318968), (15702, 1317120), (16128, 1282330), (16464, 1256160), (17640, 1172416), (17920, 1154097), (18319, 1128960), (18816, 1099140), (20160, 1025864), (20580, 1004928), (20936, 987840), (21952, 942120), (23040, 897631), (23520, 879312), (23553, 878080), (24696, 837440), (25088, 824355), (26170, 790272), (26880, 769398), (27440, 753696), (28224, 732760), (30870, 669952), (31360, 659484), (31404, 658560), (32256, 641165), (32928, 628080), (35280, 586208), (36638, 564480), (37632, 549570), (39255, 526848), (40320, 512932), (41160, 502464), (41872, 493920), (43904, 471060), (47040, 439656), (47106, 439040), (49392, 418720), (52340, 395136), (53760, 384699), (54880, 376848), (54957, 376320), (56448, 366380), (61740, 334976), (62720, 329742), (62808, 329280), (65856, 314040), (70560, 293104), (73276, 282240), (75264, 274785), (78510, 263424), (80640, 256466), (82320, 251232), (83744, 246960), (87808, 235530), (91595, 225792), (94080, 219828), (94212, 219520), (98784, 209360), (104680, 197568), (109760, 188424), (109914, 188160), (112896, 183190), (117765, 175616), (123480, 167488), (125440, 164871), (125616, 164640), (128233, 161280), (131712, 157020), (141120, 146552)]