20405168784

素因数分解:

$2^4\times 3^5\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 960

約数和(自身を含む): 81894758400

約数和(自身を除く): 61489589616

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 18, 21, 22, 24, 26, 27, 28, 33, 36, 39, 42, 44, 48, 49, 52, 54, 56, 63, 66, 72, 77, 78, 81, 84, 88, 91, 98, 99, 104, 107, 108, 112, 117, 126, 132, 143, 144, 147, 154, 156, 162, 168, 176, 182, 189, 196, 198, 208, 214, 216, 231, 234, 243, 252, 264, 273, 286, 294, 297, 308, 312, 321, 324, 336, 343, 351, 364, 378, 392, 396, 428, 429, 432, 441, 462, 468, 486, 504, 528, 539, 546, 567, 572, 588, 594, 616, 624, 637, 642, 648, 686, 693, 702, 728, 749, 756, 784, 792, 819, 856, 858, 882, 891, 924, 936, 963, 972, 1001, 1008, 1029, 1053, 1078, 1092, 1134, 1144, 1176, 1177, 1188, 1232, 1274, 1284, 1287, 1296, 1323, 1372, 1386, 1391, 1404, 1456, 1498, 1512, 1584, 1617, 1638, 1701, 1712, 1716, 1764, 1782, 1848, 1872, 1911, 1926, 1944, 2002, 2058, 2079, 2106, 2156, 2184, 2247, 2268, 2288, 2352, 2354, 2376, 2457, 2548, 2568, 2574, 2646, 2673, 2744, 2772, 2782, 2808, 2889, 2996, 3003, 3024, 3087, 3159, 3234, 3276, 3402, 3432, 3528, 3531, 3564, 3696, 3773, 3822, 3852, 3861, 3888, 3969, 4004, 4116, 4158, 4173, 4212, 4312, 4368, 4459, 4494, 4536, 4708, 4752, 4851, 4914, 5096, 5136, 5148, 5243, 5292, 5346, 5488, 5544, 5564, 5616, 5733, 5778, 5992, 6006, 6174, 6237, 6318, 6468, 6552, 6741, 6804, 6864, 7007, 7056, 7062, 7128, 7371, 7546, 7644, 7704, 7722, 7938, 8008, 8232, 8239, 8316, 8346, 8424, 8624, 8667, 8918, 8988, 9009, 9072, 9261, 9416, 9702, 9737, 9828, 10192, 10296, 10486, 10584, 10593, 10692, 11088, 11128, 11319, 11466, 11556, 11583, 11907, 11984, 12012, 12348, 12474, 12519, 12636, 12936, 13104, 13377, 13482, 13608, 14014, 14124, 14256, 14553, 14742, 15092, 15288, 15301, 15408, 15444, 15729, 15876, 16016, 16464, 16478, 16632, 16692, 16848, 17199, 17334, 17836, 17976, 18018, 18522, 18711, 18832, 19404, 19474, 19656, 20223, 20592, 20972, 21021, 21168, 21186, 21384, 22113, 22256, 22638, 22932, 23112, 23166, 23814, 24024, 24696, 24717, 24948, 25038, 25272, 25872, 26001, 26754, 26964, 27027, 27216, 27783, 28028, 28248, 29106, 29211, 29484, 30184, 30576, 30602, 30888, 31458, 31752, 31779, 32956, 33264, 33384, 33957, 34398, 34668, 34749, 35672, 35952, 36036, 36701, 37044, 37422, 37557, 38808, 38948, 39312, 40131, 40446, 41944, 42042, 42372, 42768, 43659, 44226, 45276, 45864, 45903, 46224, 46332, 47187, 47628, 48048, 49049, 49392, 49434, 49896, 50076, 50544, 51597, 52002, 53508, 53928, 54054, 55566, 56056, 56496, 57673, 58212, 58422, 58968, 60368, 60669, 61204, 61776, 62916, 63063, 63504, 63558, 65912, 66768, 67914, 68159, 68796, 69336, 69498, 71344, 72072, 73402, 74088, 74151, 74844, 75114, 77616, 77896, 80262, 80892, 81081, 83349, 83888, 84084, 84744, 87318, 87633, 88452, 90552, 91728, 91806, 92664, 94374, 95256, 95337, 98098, 98868, 99792, 100152, 101871, 103194, 104004, 107016, 107107, 107856, 108108, 110103, 111132, 112112, 112671, 115346, 116424, 116844, 117936, 120393, 121338, 122408, 125832, 126126, 127116, 130977, 131824, 135828, 136318, 137592, 137709, 138672, 138996, 141561, 144144, 146804, 147147, 148176, 148302, 149688, 150228, 154791, 155792, 160524, 161784, 162162, 166698, 168168, 169488, 173019, 174636, 175266, 176904, 181104, 182007, 183612, 185328, 188748, 189189, 190512, 190674, 196196, 197736, 200304, 203742, 204477, 206388, 208008, 214032, 214214, 216216, 220206, 222264, 222453, 225342, 230692, 232848, 233688, 240786, 242676, 243243, 244816, 251664, 252252, 254232, 261954, 262899, 271656, 272636, 275184, 275418, 277992, 283122, 286011, 293608, 294294, 296604, 299376, 300456, 305613, 309582, 321048, 321321, 323568, 324324, 330309, 333396, 336336, 338013, 346038, 349272, 350532, 353808, 361179, 364014, 367224, 377496, 378378, 381348, 392392, 395472, 403711, 407484, 408954, 412776, 413127, 416016, 424683, 428428, 432432, 440412, 441441, 444528, 444906, 450684, 461384, 467376, 477113, 481572, 485352, 486486, 504504, 508464, 519057, 523908, 525798, 543312, 545272, 550836, 555984, 566244, 567567, 572022, 587216, 588588, 593208, 600912, 611226, 613431, 619164, 642096, 642642, 648648, 660618, 666792, 667359, 676026, 692076, 698544, 701064, 722358, 728028, 734448, 749749, 754992, 756756, 762696, 784784, 788697, 807422, 814968, 817908, 825552, 826254, 849366, 856856, 880824, 882882, 889812, 901368, 916839, 922768, 954226, 963144, 963963, 970704, 972972, 990927, 1009008, 1038114, 1047816, 1051596, 1083537, 1090544, 1101672, 1132488, 1135134, 1144044, 1177176, 1186416, 1211133, 1222452, 1226862, 1238328, 1239381, 1274049, 1285284, 1297296, 1321236, 1324323, 1333584, 1334718, 1352052, 1384152, 1402128, 1431339, 1444716, 1456056, 1499498, 1513512, 1525392, 1557171, 1577394, 1614844, 1629936, 1635816, 1652508, 1698732, 1702701, 1713712, 1761648, 1765764, 1779624, 1802736, 1833678, 1840293, 1908452, 1926288, 1927926, 1945944, 1981854, 2002077, 2076228, 2095632, 2103192, 2167074, 2203344, 2249247, 2264976, 2270268, 2288088, 2354352, 2366091, 2422266, 2444904, 2453724, 2476656, 2478762, 2548098, 2570568, 2642472, 2648646, 2669436, 2704104, 2768304, 2862678, 2889432, 2891889, 2912112, 2972781, 2998996, 3027024, 3114342, 3154788, 3229688, 3271632, 3305016, 3397464, 3405402, 3531528, 3559248, 3633399, 3667356, 3680586, 3718143, 3816904, 3855852, 3891888, 3963708, 3972969, 4004154, 4152456, 4206384, 4294017, 4334148, 4498494, 4540536, 4576176, 4671513, 4732182, 4844532, 4889808, 4907448, 4957524, 5096196, 5141136, 5248243, 5284944, 5297292, 5338872, 5408208, 5520879, 5725356, 5778864, 5783778, 5945562, 5997992, 6228684, 6309576, 6459376, 6610032, 6747741, 6794928, 6810804, 7063056, 7266798, 7334712, 7361172, 7436286, 7633808, 7711704, 7927416, 7945938, 8008308, 8304912, 8588034, 8668296, 8675667, 8918343, 8996988, 9081072, 9343026, 9464364, 9689064, 9814896, 9915048, 10192392, 10496486, 10594584, 10677744, 10900197, 11041758, 11450712, 11567556, 11891124, 11918907, 11995984, 12457368, 12619152, 12882051, 13495482, 13621608, 14014539, 14533596, 14669424, 14722344, 14872572, 15423408, 15744729, 15854832, 15891876, 16016616, 16562637, 17176068, 17336592, 17351334, 17836686, 17993976, 18686052, 18928728, 19378128, 19830096, 20243223, 20384784, 20992972, 21189168, 21800394, 22083516, 22901424, 23135112, 23782248, 23837814, 24914736, 25764102, 26027001, 26990964, 27243216, 28029078, 29067192, 29444688, 29745144, 31489458, 31783752, 32033232, 32700591, 33125274, 34352136, 34702668, 35673372, 35987952, 37372104, 37857456, 38646153, 40486446, 41985944, 43600788, 44167032, 46270224, 47234187, 47564496, 47675628, 51528204, 52054002, 53981928, 56058156, 58134384, 59490288, 60729669, 62978916, 63567504, 65401182, 66250548, 68704272, 69405336, 71346744, 74744208, 77292306, 80972892, 83971888, 87201576, 88334064, 94468374, 95351256, 98101773, 103056408, 104108004, 107963856, 112116312, 115938459, 121459338, 125957832, 130802364, 132501096, 138810672, 141702561, 142693488, 154584612, 161945784, 174403152, 182189007, 188936748, 190702512, 196203546, 206112816, 208216008, 224232624, 231876918, 242918676, 251915664, 261604728, 265002192, 283405122, 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約数ペア:

[(1, 20405168784), (2, 10202584392), (3, 6801722928), (4, 5101292196), (6, 3400861464), (7, 2915024112), (8, 2550646098), (9, 2267240976), (11, 1855015344), (12, 1700430732), (13, 1569628368), (14, 1457512056), (16, 1275323049), (18, 1133620488), (21, 971674704), (22, 927507672), (24, 850215366), (26, 784814184), (27, 755746992), (28, 728756028), (33, 618338448), (36, 566810244), (39, 523209456), (42, 485837352), (44, 463753836), (48, 425107683), (49, 416432016), (52, 392407092), (54, 377873496), (56, 364378014), (63, 323891568), (66, 309169224), (72, 283405122), (77, 265002192), (78, 261604728), (81, 251915664), (84, 242918676), (88, 231876918), (91, 224232624), (98, 208216008), (99, 206112816), (104, 196203546), (107, 190702512), (108, 188936748), (112, 182189007), (117, 174403152), (126, 161945784), (132, 154584612), (143, 142693488), (144, 141702561), (147, 138810672), (154, 132501096), (156, 130802364), (162, 125957832), (168, 121459338), (176, 115938459), (182, 112116312), (189, 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(924, 22083516), (936, 21800394), (963, 21189168), (972, 20992972), (1001, 20384784), (1008, 20243223), (1029, 19830096), (1053, 19378128), (1078, 18928728), (1092, 18686052), (1134, 17993976), (1144, 17836686), (1176, 17351334), (1177, 17336592), (1188, 17176068), (1232, 16562637), (1274, 16016616), (1284, 15891876), (1287, 15854832), (1296, 15744729), (1323, 15423408), (1372, 14872572), (1386, 14722344), (1391, 14669424), (1404, 14533596), (1456, 14014539), (1498, 13621608), (1512, 13495482), (1584, 12882051), (1617, 12619152), (1638, 12457368), (1701, 11995984), (1712, 11918907), (1716, 11891124), (1764, 11567556), (1782, 11450712), (1848, 11041758), (1872, 10900197), (1911, 10677744), (1926, 10594584), (1944, 10496486), (2002, 10192392), (2058, 9915048), (2079, 9814896), (2106, 9689064), (2156, 9464364), (2184, 9343026), (2247, 9081072), (2268, 8996988), (2288, 8918343), (2352, 8675667), (2354, 8668296), (2376, 8588034), (2457, 8304912), (2548, 8008308), (2568, 7945938), (2574, 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(6552, 3114342), (6741, 3027024), (6804, 2998996), (6864, 2972781), (7007, 2912112), (7056, 2891889), (7062, 2889432), (7128, 2862678), (7371, 2768304), (7546, 2704104), (7644, 2669436), (7704, 2648646), (7722, 2642472), (7938, 2570568), (8008, 2548098), (8232, 2478762), (8239, 2476656), (8316, 2453724), (8346, 2444904), (8424, 2422266), (8624, 2366091), (8667, 2354352), (8918, 2288088), (8988, 2270268), (9009, 2264976), (9072, 2249247), (9261, 2203344), (9416, 2167074), (9702, 2103192), (9737, 2095632), (9828, 2076228), (10192, 2002077), (10296, 1981854), (10486, 1945944), (10584, 1927926), (10593, 1926288), (10692, 1908452), (11088, 1840293), (11128, 1833678), (11319, 1802736), (11466, 1779624), (11556, 1765764), (11583, 1761648), (11907, 1713712), (11984, 1702701), (12012, 1698732), (12348, 1652508), (12474, 1635816), (12519, 1629936), (12636, 1614844), (12936, 1577394), (13104, 1557171), (13377, 1525392), (13482, 1513512), (13608, 1499498), (14014, 1456056), (14124, 1444716), (14256, 1431339), (14553, 1402128), (14742, 1384152), (15092, 1352052), (15288, 1334718), (15301, 1333584), (15408, 1324323), (15444, 1321236), (15729, 1297296), (15876, 1285284), (16016, 1274049), (16464, 1239381), (16478, 1238328), (16632, 1226862), (16692, 1222452), (16848, 1211133), (17199, 1186416), (17334, 1177176), (17836, 1144044), (17976, 1135134), (18018, 1132488), (18522, 1101672), (18711, 1090544), (18832, 1083537), (19404, 1051596), (19474, 1047816), (19656, 1038114), (20223, 1009008), (20592, 990927), (20972, 972972), (21021, 970704), (21168, 963963), (21186, 963144), (21384, 954226), (22113, 922768), (22256, 916839), (22638, 901368), (22932, 889812), (23112, 882882), (23166, 880824), (23814, 856856), (24024, 849366), (24696, 826254), (24717, 825552), (24948, 817908), (25038, 814968), (25272, 807422), (25872, 788697), (26001, 784784), (26754, 762696), (26964, 756756), (27027, 754992), (27216, 749749), (27783, 734448), (28028, 728028), (28248, 722358), (29106, 701064), (29211, 698544), (29484, 692076), (30184, 676026), (30576, 667359), (30602, 666792), (30888, 660618), (31458, 648648), (31752, 642642), (31779, 642096), (32956, 619164), (33264, 613431), (33384, 611226), (33957, 600912), (34398, 593208), (34668, 588588), (34749, 587216), (35672, 572022), (35952, 567567), (36036, 566244), (36701, 555984), (37044, 550836), (37422, 545272), (37557, 543312), (38808, 525798), (38948, 523908), (39312, 519057), (40131, 508464), (40446, 504504), (41944, 486486), (42042, 485352), (42372, 481572), (42768, 477113), (43659, 467376), (44226, 461384), (45276, 450684), (45864, 444906), (45903, 444528), (46224, 441441), (46332, 440412), (47187, 432432), (47628, 428428), (48048, 424683), (49049, 416016), (49392, 413127), (49434, 412776), (49896, 408954), (50076, 407484), (50544, 403711), (51597, 395472), (52002, 392392), (53508, 381348), (53928, 378378), (54054, 377496), (55566, 367224), (56056, 364014), (56496, 361179), (57673, 353808), (58212, 350532), (58422, 349272), (58968, 346038), (60368, 338013), (60669, 336336), (61204, 333396), (61776, 330309), (62916, 324324), (63063, 323568), (63504, 321321), (63558, 321048), (65912, 309582), (66768, 305613), (67914, 300456), (68159, 299376), (68796, 296604), (69336, 294294), (69498, 293608), (71344, 286011), (72072, 283122), (73402, 277992), (74088, 275418), (74151, 275184), (74844, 272636), (75114, 271656), (77616, 262899), (77896, 261954), (80262, 254232), (80892, 252252), (81081, 251664), (83349, 244816), (83888, 243243), (84084, 242676), (84744, 240786), (87318, 233688), (87633, 232848), (88452, 230692), (90552, 225342), (91728, 222453), (91806, 222264), (92664, 220206), (94374, 216216), (95256, 214214), (95337, 214032), (98098, 208008), (98868, 206388), (99792, 204477), (100152, 203742), (101871, 200304), (103194, 197736), (104004, 196196), (107016, 190674), (107107, 190512), (107856, 189189), (108108, 188748), (110103, 185328), (111132, 183612), (112112, 182007), (112671, 181104), (115346, 176904), (116424, 175266), (116844, 174636), (117936, 173019), (120393, 169488), (121338, 168168), (122408, 166698), (125832, 162162), (126126, 161784), (127116, 160524), (130977, 155792), (131824, 154791), (135828, 150228), (136318, 149688), (137592, 148302), (137709, 148176), (138672, 147147), (138996, 146804), (141561, 144144)]