20781387648

素因数分解:

$2^7\times 3^3\times 7^3\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:464

約数の個数: 512

約数和(自身を含む): 73244160000

約数和(自身を除く): 52462772352

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 47, 48, 49, 54, 56, 63, 64, 72, 84, 94, 96, 98, 108, 112, 126, 128, 141, 144, 147, 168, 188, 189, 192, 196, 216, 224, 252, 282, 288, 294, 329, 336, 343, 373, 376, 378, 384, 392, 423, 432, 441, 448, 504, 564, 576, 588, 658, 672, 686, 746, 752, 756, 784, 846, 864, 882, 896, 987, 1008, 1029, 1119, 1128, 1152, 1176, 1269, 1316, 1323, 1344, 1372, 1492, 1504, 1512, 1568, 1692, 1728, 1764, 1974, 2016, 2058, 2238, 2256, 2303, 2352, 2538, 2611, 2632, 2646, 2688, 2744, 2961, 2984, 3008, 3024, 3087, 3136, 3357, 3384, 3456, 3528, 3948, 4032, 4116, 4476, 4512, 4606, 4704, 5076, 5222, 5264, 5292, 5488, 5922, 5968, 6016, 6048, 6174, 6272, 6714, 6768, 6909, 7056, 7833, 7896, 8064, 8232, 8883, 8952, 9024, 9212, 9261, 9408, 10071, 10152, 10444, 10528, 10584, 10976, 11844, 11936, 12096, 12348, 13428, 13536, 13818, 14112, 15666, 15792, 16121, 16464, 17531, 17766, 17904, 18048, 18277, 18424, 18522, 18816, 20142, 20304, 20727, 20888, 21056, 21168, 21952, 23499, 23688, 23872, 24192, 24696, 26856, 27072, 27636, 28224, 31332, 31584, 32242, 32928, 35062, 35532, 35808, 36554, 36848, 37044, 40284, 40608, 41454, 41776, 42112, 42336, 43904, 46998, 47376, 47744, 48363, 49392, 52593, 53712, 54144, 54831, 55272, 56448, 62181, 62664, 63168, 64484, 65856, 70124, 70497, 71064, 71616, 73108, 73696, 74088, 80568, 81216, 82908, 83552, 84672, 93996, 94752, 96726, 98784, 105186, 107424, 109662, 110544, 122717, 124362, 125328, 126336, 127939, 128968, 131712, 140248, 140994, 142128, 143232, 145089, 146216, 147392, 148176, 157779, 161136, 162432, 164493, 165816, 167104, 169344, 187992, 189504, 193452, 197568, 210372, 214848, 219324, 221088, 245434, 248724, 250656, 255878, 257936, 280496, 281988, 284256, 290178, 292432, 294784, 296352, 315558, 322272, 328986, 331632, 334208, 368151, 375984, 379008, 383817, 386904, 395136, 420744, 429696, 435267, 438648, 442176, 473337, 490868, 493479, 497448, 501312, 511756, 515872, 560992, 563976, 568512, 580356, 584864, 592704, 631116, 644544, 657972, 663264, 736302, 751968, 767634, 773808, 841488, 859019, 870534, 877296, 884352, 946674, 981736, 986958, 994896, 1002624, 1023512, 1031744, 1104453, 1121984, 1127952, 1137024, 1151451, 1160712, 1169728, 1185408, 1262232, 1289088, 1315944, 1326528, 1472604, 1503936, 1535268, 1547616, 1682976, 1718038, 1741068, 1754592, 1893348, 1963472, 1973916, 1989792, 2047024, 2063488, 2208906, 2243968, 2255904, 2302902, 2321424, 2339456, 2524464, 2577057, 2631888, 2653056, 2945208, 3007872, 3070536, 3095232, 3313359, 3365952, 3436076, 3454353, 3482136, 3509184, 3786696, 3926944, 3947832, 3979584, 4094048, 4417812, 4511808, 4605804, 4642848, 5048928, 5154114, 5263776, 5890416, 6013133, 6141072, 6190464, 6626718, 6731904, 6872152, 6908706, 6964272, 7018368, 7573392, 7731171, 7853888, 7895664, 7959168, 8188096, 8835624, 9023616, 9211608, 9285696, 10097856, 10308228, 10527552, 11780832, 12026266, 12282144, 13253436, 13744304, 13817412, 13928544, 15146784, 15462342, 15707776, 15791328, 16376192, 17671248, 18039399, 18423216, 18571392, 20195712, 20616456, 21055104, 23193513, 23561664, 24052532, 24564288, 26506872, 27488608, 27634824, 27857088, 30293568, 30924684, 31582656, 35342496, 36078798, 36846432, 41232912, 46387026, 47123328, 48105064, 49128576, 53013744, 54118197, 54977216, 55269648, 55714176, 60587136, 61849368, 63165312, 70684992, 72157596, 73692864, 82465824, 92774052, 96210128, 106027488, 108236394, 109954432, 110539296, 123698736, 141369984, 144315192, 147385728, 162354591, 164931648, 185548104, 192420256, 212054976, 216472788, 221078592, 247397472, 288630384, 324709182, 329863296, 371096208, 384840512, 424109952, 432945576, 442157184, 494794944, 577260768, 649418364, 742192416, 769681024, 865891152, 989589888, 1154521536, 1298836728, 1484384832, 1731782304, 2309043072, 2597673456, 2968769664, 3463564608, 5195346912, 6927129216, 10390693824, 20781387648]

約数ペア:

[(1, 20781387648), (2, 10390693824), (3, 6927129216), (4, 5195346912), (6, 3463564608), (7, 2968769664), (8, 2597673456), (9, 2309043072), (12, 1731782304), (14, 1484384832), (16, 1298836728), (18, 1154521536), (21, 989589888), (24, 865891152), (27, 769681024), (28, 742192416), (32, 649418364), (36, 577260768), (42, 494794944), (47, 442157184), (48, 432945576), (49, 424109952), (54, 384840512), (56, 371096208), (63, 329863296), (64, 324709182), (72, 288630384), (84, 247397472), (94, 221078592), (96, 216472788), (98, 212054976), (108, 192420256), (112, 185548104), (126, 164931648), (128, 162354591), (141, 147385728), (144, 144315192), (147, 141369984), (168, 123698736), (188, 110539296), (189, 109954432), (192, 108236394), (196, 106027488), (216, 96210128), (224, 92774052), (252, 82465824), (282, 73692864), (288, 72157596), (294, 70684992), (329, 63165312), (336, 61849368), (343, 60587136), (373, 55714176), (376, 55269648), (378, 54977216), (384, 54118197), (392, 53013744), (423, 49128576), (432, 48105064), (441, 47123328), (448, 46387026), (504, 41232912), (564, 36846432), (576, 36078798), (588, 35342496), (658, 31582656), (672, 30924684), (686, 30293568), (746, 27857088), (752, 27634824), (756, 27488608), (784, 26506872), (846, 24564288), (864, 24052532), (882, 23561664), (896, 23193513), (987, 21055104), (1008, 20616456), (1029, 20195712), (1119, 18571392), (1128, 18423216), (1152, 18039399), (1176, 17671248), (1269, 16376192), (1316, 15791328), (1323, 15707776), (1344, 15462342), (1372, 15146784), (1492, 13928544), (1504, 13817412), (1512, 13744304), (1568, 13253436), (1692, 12282144), (1728, 12026266), (1764, 11780832), (1974, 10527552), (2016, 10308228), (2058, 10097856), (2238, 9285696), (2256, 9211608), (2303, 9023616), (2352, 8835624), (2538, 8188096), (2611, 7959168), (2632, 7895664), (2646, 7853888), (2688, 7731171), (2744, 7573392), (2961, 7018368), (2984, 6964272), (3008, 6908706), (3024, 6872152), (3087, 6731904), (3136, 6626718), (3357, 6190464), (3384, 6141072), (3456, 6013133), (3528, 5890416), (3948, 5263776), (4032, 5154114), (4116, 5048928), (4476, 4642848), (4512, 4605804), (4606, 4511808), (4704, 4417812), (5076, 4094048), (5222, 3979584), (5264, 3947832), (5292, 3926944), (5488, 3786696), (5922, 3509184), (5968, 3482136), (6016, 3454353), (6048, 3436076), (6174, 3365952), (6272, 3313359), (6714, 3095232), (6768, 3070536), (6909, 3007872), (7056, 2945208), (7833, 2653056), (7896, 2631888), (8064, 2577057), (8232, 2524464), (8883, 2339456), (8952, 2321424), (9024, 2302902), (9212, 2255904), (9261, 2243968), (9408, 2208906), (10071, 2063488), (10152, 2047024), (10444, 1989792), (10528, 1973916), (10584, 1963472), (10976, 1893348), (11844, 1754592), (11936, 1741068), (12096, 1718038), (12348, 1682976), (13428, 1547616), (13536, 1535268), (13818, 1503936), (14112, 1472604), (15666, 1326528), (15792, 1315944), (16121, 1289088), (16464, 1262232), (17531, 1185408), (17766, 1169728), (17904, 1160712), (18048, 1151451), (18277, 1137024), (18424, 1127952), (18522, 1121984), (18816, 1104453), (20142, 1031744), (20304, 1023512), (20727, 1002624), (20888, 994896), (21056, 986958), (21168, 981736), (21952, 946674), (23499, 884352), (23688, 877296), (23872, 870534), (24192, 859019), (24696, 841488), (26856, 773808), (27072, 767634), (27636, 751968), (28224, 736302), (31332, 663264), (31584, 657972), (32242, 644544), (32928, 631116), (35062, 592704), (35532, 584864), (35808, 580356), (36554, 568512), (36848, 563976), (37044, 560992), (40284, 515872), (40608, 511756), (41454, 501312), (41776, 497448), (42112, 493479), (42336, 490868), (43904, 473337), (46998, 442176), (47376, 438648), (47744, 435267), (48363, 429696), (49392, 420744), (52593, 395136), (53712, 386904), (54144, 383817), (54831, 379008), (55272, 375984), (56448, 368151), (62181, 334208), (62664, 331632), (63168, 328986), (64484, 322272), (65856, 315558), (70124, 296352), (70497, 294784), (71064, 292432), (71616, 290178), (73108, 284256), (73696, 281988), (74088, 280496), (80568, 257936), (81216, 255878), (82908, 250656), (83552, 248724), (84672, 245434), (93996, 221088), (94752, 219324), (96726, 214848), (98784, 210372), (105186, 197568), (107424, 193452), (109662, 189504), (110544, 187992), (122717, 169344), (124362, 167104), (125328, 165816), (126336, 164493), (127939, 162432), (128968, 161136), (131712, 157779), (140248, 148176), (140994, 147392), (142128, 146216), (143232, 145089)]