20721947904

素因数分解:

$2^8\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:176

約数の個数: 864

約数和(自身を含む): 78013756800

約数和(自身を除く): 57291808896

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 49, 51, 54, 56, 59, 61, 63, 64, 68, 72, 84, 96, 98, 102, 108, 112, 118, 119, 122, 126, 128, 136, 144, 147, 153, 168, 177, 183, 189, 192, 196, 204, 216, 224, 236, 238, 244, 252, 256, 272, 288, 294, 306, 336, 354, 357, 366, 378, 384, 392, 408, 413, 427, 432, 441, 448, 459, 472, 476, 488, 504, 531, 544, 549, 576, 588, 612, 672, 708, 714, 732, 756, 768, 784, 816, 826, 833, 854, 864, 882, 896, 918, 944, 952, 976, 1003, 1008, 1037, 1062, 1071, 1088, 1098, 1152, 1176, 1224, 1239, 1281, 1323, 1344, 1416, 1428, 1464, 1512, 1568, 1593, 1632, 1647, 1652, 1666, 1708, 1728, 1764, 1792, 1836, 1888, 1904, 1952, 2006, 2016, 2074, 2124, 2142, 2176, 2196, 2304, 2352, 2448, 2478, 2499, 2562, 2646, 2688, 2832, 2856, 2891, 2928, 2989, 3009, 3024, 3111, 3136, 3186, 3213, 3264, 3294, 3304, 3332, 3416, 3456, 3528, 3599, 3672, 3717, 3776, 3808, 3843, 3904, 4012, 4032, 4148, 4248, 4284, 4352, 4392, 4704, 4896, 4956, 4998, 5124, 5292, 5376, 5664, 5712, 5782, 5856, 5978, 6018, 6048, 6222, 6272, 6372, 6426, 6528, 6588, 6608, 6664, 6832, 6912, 7021, 7056, 7198, 7259, 7344, 7434, 7497, 7552, 7616, 7686, 7808, 8024, 8064, 8296, 8496, 8568, 8673, 8784, 8967, 9027, 9333, 9408, 9792, 9912, 9996, 10248, 10584, 10797, 11151, 11328, 11424, 11529, 11564, 11712, 11956, 12036, 12096, 12444, 12544, 12744, 12852, 13056, 13176, 13216, 13328, 13664, 14042, 14112, 14396, 14518, 14688, 14868, 14994, 15104, 15232, 15372, 15616, 16048, 16128, 16592, 16992, 17136, 17346, 17568, 17934, 18054, 18666, 18816, 19584, 19824, 19992, 20496, 21063, 21168, 21594, 21777, 22302, 22491, 22656, 22848, 23058, 23128, 23424, 23912, 24072, 24192, 24888, 25193, 25488, 25704, 26019, 26352, 26432, 26656, 26901, 27081, 27328, 27999, 28084, 28224, 28792, 29036, 29376, 29736, 29988, 30464, 30744, 32096, 32391, 33184, 33984, 34272, 34692, 35136, 35868, 36108, 37332, 37632, 39168, 39648, 39984, 40992, 42126, 42336, 43188, 43554, 44604, 44982, 45312, 45696, 46116, 46256, 46848, 47824, 48144, 48384, 49147, 49776, 50386, 50813, 50976, 51408, 52038, 52704, 52864, 53312, 53802, 54162, 54656, 55998, 56168, 56448, 57584, 58072, 58752, 59472, 59976, 61183, 61488, 63189, 64192, 64782, 65331, 66368, 67968, 68544, 69384, 70272, 71736, 72216, 74664, 75579, 78057, 79296, 79968, 80703, 81984, 84252, 84672, 86376, 87108, 89208, 89964, 91392, 92232, 92512, 95648, 96288, 97173, 98294, 99552, 100772, 101626, 101952, 102816, 104076, 105408, 105728, 106624, 107604, 108324, 109312, 111996, 112336, 112896, 115168, 116144, 117504, 118944, 119952, 122366, 122976, 126378, 128384, 129564, 130662, 132736, 135936, 137088, 138768, 140544, 143472, 144432, 147441, 149328, 151158, 152439, 156114, 158592, 159936, 161406, 163968, 168504, 169344, 172752, 174216, 176351, 178416, 179928, 183549, 184464, 185024, 189567, 191296, 192576, 194346, 195993, 196588, 199104, 201544, 203252, 203904, 205632, 208152, 210816, 213248, 215208, 216648, 223992, 224672, 226737, 230336, 232288, 237888, 239904, 244732, 245952, 252756, 256768, 259128, 261324, 265472, 274176, 277536, 286944, 288864, 294882, 298656, 302316, 304878, 312228, 317184, 319872, 322812, 327936, 337008, 338688, 345504, 348432, 352702, 356832, 359856, 367098, 368928, 370048, 379134, 382592, 385152, 388692, 391986, 393176, 398208, 403088, 406504, 407808, 411264, 416304, 421632, 428281, 430416, 433296, 442323, 447984, 449344, 453474, 457317, 460672, 464576, 475776, 479808, 489464, 491904, 505512, 518256, 522648, 529053, 550647, 555072, 573888, 577728, 589764, 597312, 604632, 609756, 624456, 639744, 645624, 674016, 680211, 691008, 696864, 705404, 713664, 719712, 734196, 737856, 740096, 758268, 765184, 770304, 777384, 783972, 786352, 796416, 806176, 813008, 822528, 832608, 856562, 860832, 866592, 884646, 895968, 898688, 906948, 914634, 921344, 929152, 951552, 959616, 978928, 983808, 1011024, 1036512, 1045296, 1058106, 1101294, 1110144, 1147776, 1155456, 1179528, 1194624, 1209264, 1219512, 1248912, 1284843, 1291248, 1326969, 1348032, 1360422, 1371951, 1382016, 1393728, 1410808, 1427328, 1439424, 1468392, 1475712, 1516536, 1554768, 1567944, 1572704, 1587159, 1612352, 1626016, 1651941, 1665216, 1713124, 1721664, 1733184, 1769292, 1791936, 1797376, 1813896, 1829268, 1858304, 1919232, 1957856, 2022048, 2073024, 2090592, 2116212, 2202588, 2220288, 2295552, 2310912, 2359056, 2389248, 2418528, 2439024, 2497824, 2569686, 2582496, 2653938, 2696064, 2720844, 2743902, 2764032, 2787456, 2821616, 2854656, 2878848, 2936784, 2951424, 2997967, 3033072, 3109536, 3135888, 3145408, 3174318, 3224704, 3252032, 3303882, 3330432, 3426248, 3443328, 3466368, 3538584, 3583872, 3627792, 3658536, 3854529, 3915712, 4044096, 4146048, 4181184, 4232424, 4405176, 4718112, 4761477, 4837056, 4878048, 4995648, 5139372, 5164992, 5307876, 5392128, 5441688, 5487804, 5574912, 5643232, 5757696, 5873568, 5995934, 6066144, 6219072, 6271776, 6290816, 6348636, 6449408, 6504064, 6607764, 6660864, 6852496, 6886656, 6932736, 7077168, 7167744, 7255584, 7317072, 7709058, 7831424, 8088192, 8292096, 8362368, 8464848, 8810352, 8993901, 9436224, 9522954, 9674112, 9756096, 9991296, 10278744, 10329984, 10615752, 10883376, 10975608, 11286464, 11563587, 11747136, 11991868, 12132288, 12438144, 12543552, 12581632, 12697272, 13008128, 13215528, 13704992, 14154336, 14511168, 14634144, 15418116, 15662848, 16176384, 16724736, 16929696, 17620704, 17987802, 18872448, 19045908, 19348224, 19512192, 19982592, 20557488, 20659968, 21231504, 21766752, 21951216, 22572928, 23127174, 23494272, 23983736, 24264576, 24876288, 25087104, 25394544, 26431056, 26981703, 27409984, 28308672, 29022336, 29268288, 30836232, 33859392, 35241408, 35975604, 37744896, 38091816, 39024384, 41114976, 42463008, 43533504, 43902432, 45145856, 46254348, 46988544, 47967472, 48529152, 50174208, 50789088, 52862112, 53963406, 54819968, 56617344, 58044672, 58536576, 61672464, 67718784, 70482816, 71951208, 76183632, 80945109, 82229952, 84926016, 87067008, 87804864, 92508696, 95934944, 101578176, 105724224, 107926812, 109639936, 113234688, 117073152, 123344928, 135437568, 140965632, 143902416, 152367264, 161890218, 164459904, 169852032, 174134016, 175609728, 185017392, 191869888, 203156352, 211448448, 215853624, 246689856, 287804832, 304734528, 323780436, 328919808, 339704064, 351219456, 370034784, 383739776, 406312704, 422896896, 431707248, 493379712, 575609664, 609469056, 647560872, 740069568, 767479552, 863414496, 986759424, 1151219328, 1218938112, 1295121744, 1480139136, 1726828992, 2302438656, 2590243488, 2960278272, 3453657984, 5180486976, 6907315968, 10360973952, 20721947904]

約数ペア:

[(1, 20721947904), (2, 10360973952), (3, 6907315968), (4, 5180486976), (6, 3453657984), (7, 2960278272), (8, 2590243488), (9, 2302438656), (12, 1726828992), (14, 1480139136), (16, 1295121744), (17, 1218938112), (18, 1151219328), (21, 986759424), (24, 863414496), (27, 767479552), (28, 740069568), (32, 647560872), (34, 609469056), (36, 575609664), (42, 493379712), (48, 431707248), (49, 422896896), (51, 406312704), (54, 383739776), (56, 370034784), (59, 351219456), (61, 339704064), (63, 328919808), (64, 323780436), (68, 304734528), (72, 287804832), (84, 246689856), (96, 215853624), (98, 211448448), (102, 203156352), (108, 191869888), (112, 185017392), (118, 175609728), (119, 174134016), (122, 169852032), (126, 164459904), (128, 161890218), (136, 152367264), (144, 143902416), (147, 140965632), (153, 135437568), (168, 123344928), (177, 117073152), (183, 113234688), (189, 109639936), (192, 107926812), (196, 105724224), (204, 101578176), (216, 95934944), (224, 92508696), (236, 87804864), (238, 87067008), (244, 84926016), (252, 82229952), (256, 80945109), (272, 76183632), (288, 71951208), (294, 70482816), (306, 67718784), (336, 61672464), (354, 58536576), (357, 58044672), (366, 56617344), (378, 54819968), (384, 53963406), (392, 52862112), (408, 50789088), (413, 50174208), (427, 48529152), (432, 47967472), (441, 46988544), (448, 46254348), (459, 45145856), (472, 43902432), (476, 43533504), (488, 42463008), (504, 41114976), (531, 39024384), (544, 38091816), (549, 37744896), (576, 35975604), (588, 35241408), (612, 33859392), (672, 30836232), (708, 29268288), (714, 29022336), (732, 28308672), (756, 27409984), (768, 26981703), (784, 26431056), (816, 25394544), (826, 25087104), (833, 24876288), (854, 24264576), (864, 23983736), (882, 23494272), (896, 23127174), (918, 22572928), (944, 21951216), (952, 21766752), (976, 21231504), (1003, 20659968), (1008, 20557488), (1037, 19982592), (1062, 19512192), (1071, 19348224), (1088, 19045908), (1098, 18872448), (1152, 17987802), (1176, 17620704), (1224, 16929696), (1239, 16724736), (1281, 16176384), (1323, 15662848), (1344, 15418116), (1416, 14634144), (1428, 14511168), (1464, 14154336), (1512, 13704992), (1568, 13215528), (1593, 13008128), (1632, 12697272), (1647, 12581632), (1652, 12543552), (1666, 12438144), (1708, 12132288), (1728, 11991868), (1764, 11747136), (1792, 11563587), (1836, 11286464), (1888, 10975608), (1904, 10883376), (1952, 10615752), (2006, 10329984), (2016, 10278744), (2074, 9991296), (2124, 9756096), (2142, 9674112), (2176, 9522954), (2196, 9436224), (2304, 8993901), (2352, 8810352), (2448, 8464848), (2478, 8362368), (2499, 8292096), (2562, 8088192), (2646, 7831424), (2688, 7709058), (2832, 7317072), (2856, 7255584), (2891, 7167744), (2928, 7077168), (2989, 6932736), (3009, 6886656), (3024, 6852496), (3111, 6660864), (3136, 6607764), (3186, 6504064), (3213, 6449408), (3264, 6348636), (3294, 6290816), (3304, 6271776), (3332, 6219072), (3416, 6066144), (3456, 5995934), (3528, 5873568), (3599, 5757696), (3672, 5643232), (3717, 5574912), (3776, 5487804), (3808, 5441688), (3843, 5392128), (3904, 5307876), (4012, 5164992), (4032, 5139372), (4148, 4995648), (4248, 4878048), (4284, 4837056), (4352, 4761477), (4392, 4718112), (4704, 4405176), (4896, 4232424), (4956, 4181184), (4998, 4146048), (5124, 4044096), (5292, 3915712), (5376, 3854529), (5664, 3658536), (5712, 3627792), (5782, 3583872), (5856, 3538584), (5978, 3466368), (6018, 3443328), (6048, 3426248), (6222, 3330432), (6272, 3303882), (6372, 3252032), (6426, 3224704), (6528, 3174318), (6588, 3145408), (6608, 3135888), (6664, 3109536), (6832, 3033072), (6912, 2997967), (7021, 2951424), (7056, 2936784), (7198, 2878848), (7259, 2854656), (7344, 2821616), (7434, 2787456), (7497, 2764032), (7552, 2743902), (7616, 2720844), (7686, 2696064), (7808, 2653938), (8024, 2582496), (8064, 2569686), (8296, 2497824), (8496, 2439024), (8568, 2418528), (8673, 2389248), (8784, 2359056), (8967, 2310912), (9027, 2295552), (9333, 2220288), (9408, 2202588), (9792, 2116212), (9912, 2090592), (9996, 2073024), (10248, 2022048), (10584, 1957856), (10797, 1919232), (11151, 1858304), (11328, 1829268), (11424, 1813896), (11529, 1797376), (11564, 1791936), (11712, 1769292), (11956, 1733184), (12036, 1721664), (12096, 1713124), (12444, 1665216), (12544, 1651941), (12744, 1626016), (12852, 1612352), (13056, 1587159), (13176, 1572704), (13216, 1567944), (13328, 1554768), (13664, 1516536), (14042, 1475712), (14112, 1468392), (14396, 1439424), (14518, 1427328), (14688, 1410808), (14868, 1393728), (14994, 1382016), (15104, 1371951), (15232, 1360422), (15372, 1348032), (15616, 1326969), (16048, 1291248), (16128, 1284843), (16592, 1248912), (16992, 1219512), (17136, 1209264), (17346, 1194624), (17568, 1179528), (17934, 1155456), (18054, 1147776), (18666, 1110144), (18816, 1101294), (19584, 1058106), (19824, 1045296), (19992, 1036512), (20496, 1011024), (21063, 983808), (21168, 978928), (21594, 959616), (21777, 951552), (22302, 929152), (22491, 921344), (22656, 914634), (22848, 906948), (23058, 898688), (23128, 895968), (23424, 884646), (23912, 866592), (24072, 860832), (24192, 856562), (24888, 832608), (25193, 822528), (25488, 813008), (25704, 806176), (26019, 796416), (26352, 786352), (26432, 783972), (26656, 777384), (26901, 770304), (27081, 765184), (27328, 758268), (27999, 740096), (28084, 737856), (28224, 734196), (28792, 719712), (29036, 713664), (29376, 705404), (29736, 696864), (29988, 691008), (30464, 680211), (30744, 674016), (32096, 645624), (32391, 639744), (33184, 624456), (33984, 609756), (34272, 604632), (34692, 597312), (35136, 589764), (35868, 577728), (36108, 573888), (37332, 555072), (37632, 550647), (39168, 529053), (39648, 522648), (39984, 518256), (40992, 505512), (42126, 491904), (42336, 489464), (43188, 479808), (43554, 475776), (44604, 464576), (44982, 460672), (45312, 457317), (45696, 453474), (46116, 449344), (46256, 447984), (46848, 442323), (47824, 433296), (48144, 430416), (48384, 428281), (49147, 421632), (49776, 416304), (50386, 411264), (50813, 407808), (50976, 406504), (51408, 403088), (52038, 398208), (52704, 393176), (52864, 391986), (53312, 388692), (53802, 385152), (54162, 382592), (54656, 379134), (55998, 370048), (56168, 368928), (56448, 367098), (57584, 359856), (58072, 356832), (58752, 352702), (59472, 348432), (59976, 345504), (61183, 338688), (61488, 337008), (63189, 327936), (64192, 322812), (64782, 319872), (65331, 317184), (66368, 312228), (67968, 304878), (68544, 302316), (69384, 298656), (70272, 294882), (71736, 288864), (72216, 286944), (74664, 277536), (75579, 274176), (78057, 265472), (79296, 261324), (79968, 259128), (80703, 256768), (81984, 252756), (84252, 245952), (84672, 244732), (86376, 239904), (87108, 237888), (89208, 232288), (89964, 230336), (91392, 226737), (92232, 224672), (92512, 223992), (95648, 216648), (96288, 215208), (97173, 213248), (98294, 210816), (99552, 208152), (100772, 205632), (101626, 203904), (101952, 203252), (102816, 201544), (104076, 199104), (105408, 196588), (105728, 195993), (106624, 194346), (107604, 192576), (108324, 191296), (109312, 189567), (111996, 185024), (112336, 184464), (112896, 183549), (115168, 179928), (116144, 178416), (117504, 176351), (118944, 174216), (119952, 172752), (122366, 169344), (122976, 168504), (126378, 163968), (128384, 161406), (129564, 159936), (130662, 158592), (132736, 156114), (135936, 152439), (137088, 151158), (138768, 149328), (140544, 147441), (143472, 144432)]