20406280320

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1709}}^1$

素因数の和:2428

約数の個数: 256

約数和(自身を含む): 72419184000

約数和(自身を除く): 52012903680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 691, 720, 864, 960, 1080, 1152, 1382, 1440, 1709, 1728, 1920, 2073, 2160, 2764, 2880, 3418, 3455, 3456, 4146, 4320, 5127, 5528, 5760, 6219, 6836, 6910, 8292, 8545, 8640, 10254, 10365, 11056, 12438, 13672, 13820, 15381, 16584, 17090, 17280, 18657, 20508, 20730, 22112, 24876, 25635, 27344, 27640, 30762, 31095, 33168, 34180, 37314, 41016, 41460, 44224, 46143, 49752, 51270, 54688, 55280, 61524, 62190, 66336, 68360, 74628, 76905, 82032, 82920, 88448, 92286, 93285, 99504, 102540, 109376, 110560, 123048, 124380, 132672, 136720, 149256, 153810, 164064, 165840, 184572, 186570, 199008, 205080, 218752, 221120, 230715, 246096, 248760, 265344, 273440, 298512, 307620, 328128, 331680, 369144, 373140, 398016, 410160, 442240, 461430, 492192, 497520, 546880, 597024, 615240, 656256, 663360, 738288, 746280, 796032, 820320, 922860, 984384, 995040, 1093760, 1180919, 1194048, 1230480, 1326720, 1476576, 1492560, 1640640, 1845720, 1968768, 1990080, 2361838, 2388096, 2460960, 2953152, 2985120, 3281280, 3542757, 3691440, 3980160, 4723676, 4921920, 5904595, 5906304, 5970240, 7085514, 7382880, 9447352, 9843840, 10628271, 11809190, 11940480, 14171028, 14765760, 17713785, 18894704, 21256542, 23618380, 28342056, 29531520, 31884813, 35427570, 37789408, 42513084, 47236760, 53141355, 56684112, 63769626, 70855140, 75578816, 85026168, 94473520, 106282710, 113368224, 127539252, 141710280, 151157632, 159424065, 170052336, 188947040, 212565420, 226736448, 255078504, 283420560, 318848130, 340104672, 377894080, 425130840, 453472896, 510157008, 566841120, 637696260, 680209344, 755788160, 850261680, 1020314016, 1133682240, 1275392520, 1360418688, 1700523360, 2040628032, 2267364480, 2550785040, 3401046720, 4081256064, 5101570080, 6802093440, 10203140160, 20406280320]

約数ペア:

[(1, 20406280320), (2, 10203140160), (3, 6802093440), (4, 5101570080), (5, 4081256064), (6, 3401046720), (8, 2550785040), (9, 2267364480), (10, 2040628032), (12, 1700523360), (15, 1360418688), (16, 1275392520), (18, 1133682240), (20, 1020314016), (24, 850261680), (27, 755788160), (30, 680209344), (32, 637696260), (36, 566841120), (40, 510157008), (45, 453472896), (48, 425130840), (54, 377894080), (60, 340104672), (64, 318848130), (72, 283420560), (80, 255078504), (90, 226736448), (96, 212565420), (108, 188947040), (120, 170052336), (128, 159424065), (135, 151157632), (144, 141710280), (160, 127539252), (180, 113368224), (192, 106282710), (216, 94473520), (240, 85026168), (270, 75578816), (288, 70855140), (320, 63769626), (360, 56684112), (384, 53141355), (432, 47236760), (480, 42513084), (540, 37789408), (576, 35427570), (640, 31884813), (691, 29531520), (720, 28342056), (864, 23618380), (960, 21256542), (1080, 18894704), (1152, 17713785), (1382, 14765760), (1440, 14171028), (1709, 11940480), (1728, 11809190), (1920, 10628271), (2073, 9843840), (2160, 9447352), (2764, 7382880), (2880, 7085514), (3418, 5970240), (3455, 5906304), (3456, 5904595), (4146, 4921920), (4320, 4723676), (5127, 3980160), (5528, 3691440), (5760, 3542757), (6219, 3281280), (6836, 2985120), (6910, 2953152), (8292, 2460960), (8545, 2388096), (8640, 2361838), (10254, 1990080), (10365, 1968768), (11056, 1845720), (12438, 1640640), (13672, 1492560), (13820, 1476576), (15381, 1326720), (16584, 1230480), (17090, 1194048), (17280, 1180919), (18657, 1093760), (20508, 995040), (20730, 984384), (22112, 922860), (24876, 820320), (25635, 796032), (27344, 746280), (27640, 738288), (30762, 663360), (31095, 656256), (33168, 615240), (34180, 597024), (37314, 546880), (41016, 497520), (41460, 492192), (44224, 461430), (46143, 442240), (49752, 410160), (51270, 398016), (54688, 373140), (55280, 369144), (61524, 331680), (62190, 328128), (66336, 307620), (68360, 298512), (74628, 273440), (76905, 265344), (82032, 248760), (82920, 246096), (88448, 230715), (92286, 221120), (93285, 218752), (99504, 205080), (102540, 199008), (109376, 186570), (110560, 184572), (123048, 165840), (124380, 164064), (132672, 153810), (136720, 149256)]