20281031680

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 704

約数和(自身を含む): 66028032000

約数和(自身を除く): 45747000320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 29, 32, 35, 38, 40, 52, 56, 58, 64, 65, 70, 76, 79, 80, 91, 95, 104, 112, 116, 128, 130, 133, 140, 145, 152, 158, 160, 182, 190, 203, 208, 224, 232, 247, 256, 260, 266, 280, 290, 304, 316, 320, 364, 377, 380, 395, 406, 416, 448, 455, 464, 494, 512, 520, 532, 551, 553, 560, 580, 608, 632, 640, 665, 728, 754, 760, 790, 812, 832, 896, 910, 928, 988, 1015, 1024, 1027, 1040, 1064, 1102, 1106, 1120, 1160, 1216, 1235, 1264, 1280, 1330, 1456, 1501, 1508, 1520, 1580, 1624, 1664, 1729, 1792, 1820, 1856, 1885, 1976, 2030, 2054, 2080, 2128, 2204, 2212, 2240, 2291, 2320, 2432, 2470, 2528, 2560, 2639, 2660, 2755, 2765, 2912, 3002, 3016, 3040, 3160, 3248, 3328, 3458, 3584, 3640, 3712, 3770, 3857, 3952, 4060, 4108, 4160, 4256, 4408, 4424, 4480, 4582, 4640, 4864, 4940, 5056, 5120, 5135, 5278, 5320, 5510, 5530, 5824, 6004, 6032, 6080, 6320, 6496, 6656, 6916, 7163, 7168, 7189, 7280, 7424, 7505, 7540, 7714, 7904, 8120, 8216, 8320, 8512, 8645, 8816, 8848, 8960, 9164, 9280, 9728, 9880, 10112, 10270, 10507, 10556, 10640, 11020, 11060, 11455, 11648, 12008, 12064, 12160, 12640, 12992, 13195, 13312, 13832, 14326, 14378, 14560, 14848, 15010, 15080, 15428, 15808, 16037, 16240, 16432, 16640, 17024, 17290, 17632, 17696, 17920, 18328, 18560, 19285, 19456, 19513, 19760, 20224, 20540, 21014, 21112, 21280, 22040, 22120, 22910, 23296, 24016, 24128, 24320, 25280, 25984, 26390, 27664, 28652, 28756, 29120, 29696, 29783, 30020, 30160, 30856, 31616, 32074, 32480, 32864, 33280, 34048, 34580, 35264, 35392, 35815, 35840, 35945, 36656, 37120, 38570, 39026, 39520, 40448, 41080, 42028, 42224, 42560, 43529, 44080, 44240, 45820, 46592, 48032, 48256, 48640, 50141, 50560, 51968, 52535, 52780, 55328, 57304, 57512, 58240, 59566, 60040, 60320, 61712, 63232, 64148, 64960, 65728, 66560, 68096, 69160, 70528, 70784, 71630, 71890, 73312, 74240, 77140, 78052, 79040, 80185, 80896, 82160, 84056, 84448, 85120, 87058, 88160, 88480, 91640, 93184, 96064, 96512, 97280, 97565, 100282, 101120, 103936, 105070, 105560, 110656, 114608, 115024, 116480, 119132, 120080, 120640, 123424, 126464, 128296, 129920, 131456, 136192, 136591, 138320, 141056, 141568, 143260, 143780, 146624, 148480, 148915, 154280, 156104, 158080, 160370, 164320, 168112, 168896, 170240, 174116, 176320, 176960, 183280, 192128, 193024, 195130, 200564, 202240, 207872, 208481, 210140, 211120, 217645, 221312, 229216, 230048, 232960, 238264, 240160, 241280, 246848, 250705, 252928, 256592, 259840, 262912, 273182, 276640, 282112, 283136, 286520, 287560, 293248, 297830, 304703, 308560, 312208, 316160, 320740, 328640, 336224, 337792, 340480, 348232, 352640, 353920, 366560, 384256, 386048, 390260, 401128, 404480, 416962, 420280, 422240, 435290, 442624, 458432, 460096, 465920, 476528, 480320, 482560, 493696, 501410, 513184, 519680, 525824, 546364, 553280, 564224, 565877, 566272, 573040, 575120, 586496, 595660, 609406, 617120, 624416, 632320, 641480, 657280, 672448, 675584, 680960, 682955, 696464, 705280, 707840, 733120, 768512, 780520, 802256, 833924, 840560, 844480, 870580, 885248, 916864, 920192, 953056, 960640, 965120, 987392, 1002820, 1026368, 1039360, 1042405, 1051648, 1092728, 1106560, 1131754, 1146080, 1150240, 1172992, 1191320, 1218812, 1234240, 1248832, 1264640, 1282960, 1314560, 1344896, 1351168, 1365910, 1392928, 1410560, 1415680, 1466240, 1523515, 1537024, 1561040, 1604512, 1667848, 1681120, 1688960, 1741160, 1770496, 1833728, 1840384, 1906112, 1921280, 1930240, 1974784, 2005640, 2052736, 2084810, 2185456, 2213120, 2263508, 2292160, 2300480, 2345984, 2382640, 2437624, 2468480, 2497664, 2565920, 2629120, 2689792, 2702336, 2731820, 2785856, 2821120, 2829385, 2831360, 2932480, 3047030, 3122080, 3209024, 3335696, 3362240, 3377920, 3482320, 3667456, 3680768, 3812224, 3842560, 3949568, 3961139, 4011280, 4105472, 4169620, 4370912, 4426240, 4527016, 4584320, 4600960, 4765280, 4875248, 4936960, 4995328, 5131840, 5258240, 5379584, 5463640, 5571712, 5658770, 5864960, 6094060, 6244160, 6418048, 6671392, 6724480, 6755840, 6964640, 7334912, 7361536, 7624448, 7685120, 7922278, 8022560, 8210944, 8339240, 8741824, 8852480, 9054032, 9168640, 9201920, 9530560, 9750496, 9873920, 9990656, 10263680, 10759168, 10927280, 11143424, 11317540, 11729920, 12188120, 12488320, 12836096, 13342784, 13448960, 13511680, 13929280, 15248896, 15844556, 16045120, 16421888, 16678480, 17483648, 18108064, 18337280, 18403840, 19061120, 19500992, 19747840, 19805695, 19981312, 20527360, 21854560, 22286848, 22635080, 24376240, 24976640, 25672192, 26685568, 26897920, 27858560, 30497792, 31689112, 32090240, 33356960, 34967296, 36216128, 36674560, 36807680, 38122240, 39001984, 39611390, 41054720, 43709120, 44573696, 45270160, 48752480, 49953280, 51344384, 53371136, 53795840, 55717120, 63378224, 64180480, 66713920, 69934592, 72432256, 76244480, 78003968, 79222780, 82109440, 87418240, 90540320, 97504960, 99906560, 106742272, 111434240, 126756448, 128360960, 133427840, 139869184, 144864512, 152488960, 156007936, 158445560, 174836480, 181080640, 195009920, 213484544, 222868480, 253512896, 256721920, 266855680, 289729024, 312015872, 316891120, 349672960, 362161280, 390019840, 507025792, 533711360, 579458048, 633782240, 699345920, 724322560, 780039680, 1014051584, 1067422720, 1267564480, 1448645120, 1560079360, 2028103168, 2535128960, 2897290240, 4056206336, 5070257920, 10140515840, 20281031680]

約数ペア:

[(1, 20281031680), (2, 10140515840), (4, 5070257920), (5, 4056206336), (7, 2897290240), (8, 2535128960), (10, 2028103168), (13, 1560079360), (14, 1448645120), (16, 1267564480), (19, 1067422720), (20, 1014051584), (26, 780039680), (28, 724322560), (29, 699345920), (32, 633782240), (35, 579458048), (38, 533711360), (40, 507025792), (52, 390019840), (56, 362161280), (58, 349672960), (64, 316891120), (65, 312015872), (70, 289729024), (76, 266855680), (79, 256721920), (80, 253512896), (91, 222868480), (95, 213484544), (104, 195009920), (112, 181080640), (116, 174836480), (128, 158445560), (130, 156007936), (133, 152488960), (140, 144864512), (145, 139869184), (152, 133427840), (158, 128360960), (160, 126756448), (182, 111434240), (190, 106742272), (203, 99906560), (208, 97504960), (224, 90540320), (232, 87418240), (247, 82109440), (256, 79222780), (260, 78003968), (266, 76244480), (280, 72432256), (290, 69934592), (304, 66713920), (316, 64180480), (320, 63378224), (364, 55717120), (377, 53795840), (380, 53371136), (395, 51344384), (406, 49953280), (416, 48752480), (448, 45270160), (455, 44573696), (464, 43709120), (494, 41054720), (512, 39611390), (520, 39001984), (532, 38122240), (551, 36807680), (553, 36674560), (560, 36216128), (580, 34967296), (608, 33356960), (632, 32090240), (640, 31689112), (665, 30497792), (728, 27858560), (754, 26897920), (760, 26685568), (790, 25672192), (812, 24976640), (832, 24376240), (896, 22635080), (910, 22286848), (928, 21854560), (988, 20527360), (1015, 19981312), (1024, 19805695), (1027, 19747840), (1040, 19500992), (1064, 19061120), (1102, 18403840), (1106, 18337280), (1120, 18108064), (1160, 17483648), (1216, 16678480), (1235, 16421888), (1264, 16045120), (1280, 15844556), (1330, 15248896), (1456, 13929280), (1501, 13511680), (1508, 13448960), (1520, 13342784), (1580, 12836096), (1624, 12488320), (1664, 12188120), (1729, 11729920), (1792, 11317540), (1820, 11143424), (1856, 10927280), (1885, 10759168), (1976, 10263680), (2030, 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(7189, 2821120), (7280, 2785856), (7424, 2731820), (7505, 2702336), (7540, 2689792), (7714, 2629120), (7904, 2565920), (8120, 2497664), (8216, 2468480), (8320, 2437624), (8512, 2382640), (8645, 2345984), (8816, 2300480), (8848, 2292160), (8960, 2263508), (9164, 2213120), (9280, 2185456), (9728, 2084810), (9880, 2052736), (10112, 2005640), (10270, 1974784), (10507, 1930240), (10556, 1921280), (10640, 1906112), (11020, 1840384), (11060, 1833728), (11455, 1770496), (11648, 1741160), (12008, 1688960), (12064, 1681120), (12160, 1667848), (12640, 1604512), (12992, 1561040), (13195, 1537024), (13312, 1523515), (13832, 1466240), (14326, 1415680), (14378, 1410560), (14560, 1392928), (14848, 1365910), (15010, 1351168), (15080, 1344896), (15428, 1314560), (15808, 1282960), (16037, 1264640), (16240, 1248832), (16432, 1234240), (16640, 1218812), (17024, 1191320), (17290, 1172992), (17632, 1150240), (17696, 1146080), (17920, 1131754), (18328, 1106560), (18560, 1092728), (19285, 1051648), (19456, 1042405), (19513, 1039360), (19760, 1026368), (20224, 1002820), (20540, 987392), (21014, 965120), (21112, 960640), (21280, 953056), (22040, 920192), (22120, 916864), (22910, 885248), (23296, 870580), (24016, 844480), (24128, 840560), (24320, 833924), (25280, 802256), (25984, 780520), (26390, 768512), (27664, 733120), (28652, 707840), (28756, 705280), (29120, 696464), (29696, 682955), (29783, 680960), (30020, 675584), (30160, 672448), (30856, 657280), (31616, 641480), (32074, 632320), (32480, 624416), (32864, 617120), (33280, 609406), (34048, 595660), (34580, 586496), (35264, 575120), (35392, 573040), (35815, 566272), (35840, 565877), (35945, 564224), (36656, 553280), (37120, 546364), (38570, 525824), (39026, 519680), (39520, 513184), (40448, 501410), (41080, 493696), (42028, 482560), (42224, 480320), (42560, 476528), (43529, 465920), (44080, 460096), (44240, 458432), (45820, 442624), (46592, 435290), (48032, 422240), (48256, 420280), (48640, 416962), (50141, 404480), (50560, 401128), 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156104), (131456, 154280), (136192, 148915), (136591, 148480), (138320, 146624), (141056, 143780), (141568, 143260)]