20728505280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{23}}^2$

素因数の和:111

約数の個数: 840

約数和(自身を含む): 84981757392

約数和(自身を除く): 64253252112

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 23, 24, 28, 30, 32, 34, 35, 40, 42, 46, 48, 49, 51, 56, 60, 64, 68, 69, 70, 80, 84, 85, 92, 96, 98, 102, 105, 112, 115, 119, 120, 136, 138, 140, 147, 160, 161, 168, 170, 184, 192, 196, 204, 210, 224, 230, 238, 240, 245, 255, 272, 276, 280, 294, 320, 322, 336, 340, 343, 345, 357, 368, 391, 392, 408, 420, 448, 460, 476, 480, 483, 490, 510, 529, 544, 552, 560, 588, 595, 644, 672, 680, 686, 690, 714, 735, 736, 782, 784, 805, 816, 833, 840, 920, 952, 960, 966, 980, 1020, 1029, 1058, 1088, 1104, 1120, 1127, 1173, 1176, 1190, 1288, 1344, 1360, 1372, 1380, 1428, 1470, 1472, 1564, 1568, 1587, 1610, 1632, 1666, 1680, 1715, 1785, 1840, 1904, 1932, 1955, 1960, 2040, 2058, 2116, 2208, 2240, 2254, 2346, 2352, 2380, 2401, 2415, 2499, 2576, 2645, 2720, 2737, 2744, 2760, 2856, 2940, 3128, 3136, 3174, 3220, 3264, 3332, 3360, 3381, 3430, 3570, 3680, 3703, 3808, 3864, 3910, 3920, 4080, 4116, 4165, 4232, 4416, 4508, 4692, 4704, 4760, 4802, 4830, 4998, 5145, 5152, 5290, 5440, 5474, 5488, 5520, 5635, 5712, 5831, 5865, 5880, 6256, 6348, 6440, 6664, 6720, 6762, 6860, 7140, 7203, 7360, 7406, 7616, 7728, 7820, 7840, 7889, 7935, 8160, 8211, 8232, 8330, 8464, 8993, 9016, 9384, 9408, 9520, 9604, 9660, 9996, 10290, 10304, 10580, 10948, 10976, 11040, 11109, 11270, 11424, 11662, 11730, 11760, 12005, 12495, 12512, 12696, 12880, 13328, 13524, 13685, 13720, 14280, 14406, 14812, 15456, 15640, 15680, 15778, 15870, 16320, 16422, 16464, 16660, 16905, 16928, 17493, 17986, 18032, 18515, 18768, 19040, 19159, 19208, 19320, 19992, 20580, 21160, 21896, 21952, 22080, 22218, 22540, 22848, 23324, 23460, 23520, 23667, 24010, 24990, 25024, 25392, 25760, 25921, 26656, 26979, 27048, 27370, 27440, 28560, 28812, 29155, 29624, 30912, 31280, 31556, 31740, 32844, 32928, 33320, 33810, 33856, 34986, 35972, 36015, 36064, 37030, 37536, 38080, 38318, 38416, 38640, 39445, 39984, 40817, 41055, 41160, 42320, 43792, 44436, 44965, 45080, 46648, 46920, 47040, 47334, 48020, 49980, 50784, 51520, 51842, 53312, 53958, 54096, 54740, 54880, 55223, 55545, 57120, 57477, 57624, 58310, 59248, 62560, 62951, 63112, 63480, 65688, 65856, 66640, 67620, 69972, 71944, 72030, 72128, 74060, 75072, 76636, 76832, 77280, 77763, 78890, 79968, 81634, 82110, 82320, 84640, 87465, 87584, 88872, 89930, 90160, 93296, 93840, 94668, 95795, 96040, 99960, 101568, 103684, 107916, 108192, 109480, 109760, 110446, 111090, 114240, 114954, 115248, 116620, 118335, 118496, 122451, 125120, 125902, 126224, 126960, 129605, 131376, 133280, 134113, 134895, 135240, 139944, 143888, 144060, 148120, 153272, 153664, 154560, 155526, 157780, 159936, 163268, 164220, 164640, 165669, 169280, 174930, 175168, 177744, 179860, 180320, 181447, 186592, 187680, 188853, 189336, 191590, 192080, 199920, 204085, 207368, 215832, 216384, 218960, 220892, 222180, 229908, 230496, 233240, 236670, 236992, 244902, 251804, 252448, 253920, 259210, 262752, 266560, 268226, 269790, 270480, 276115, 279888, 287385, 287776, 288120, 296240, 306544, 311052, 314755, 315560, 326536, 328440, 329280, 331338, 349860, 355488, 359720, 360640, 362894, 373184, 375360, 377706, 378672, 383180, 384160, 388815, 399840, 402339, 408170, 414736, 431664, 437920, 440657, 441784, 444360, 459816, 460992, 466480, 473340, 489804, 503608, 504896, 507840, 518420, 525504, 536452, 539580, 540960, 544341, 552230, 559776, 574770, 575552, 576240, 592480, 612255, 613088, 622104, 629510, 631120, 653072, 656880, 662676, 670565, 699720, 710976, 719440, 725788, 755412, 757344, 766360, 768320, 777630, 799680, 804678, 816340, 828345, 829472, 863328, 875840, 881314, 883568, 888720, 907235, 919632, 932960, 938791, 944265, 946680, 979608, 1007216, 1036840, 1072904, 1079160, 1081920, 1088682, 1104460, 1119552, 1149540, 1152480, 1184960, 1224510, 1226176, 1244208, 1259020, 1262240, 1270129, 1306144, 1313760, 1321971, 1325352, 1341130, 1399440, 1438880, 1451576, 1510824, 1514688, 1532720, 1555260, 1609356, 1632680, 1656690, 1658944, 1726656, 1762628, 1767136, 1777440, 1814470, 1839264, 1865920, 1877582, 1888530, 1893360, 1959216, 2011695, 2014432, 2073680, 2145808, 2158320, 2177364, 2203285, 2208920, 2299080, 2304960, 2449020, 2488416, 2518040, 2524480, 2540258, 2612288, 2627520, 2643942, 2650704, 2682260, 2721705, 2798880, 2816373, 2877760, 2903152, 3021648, 3065440, 3084599, 3110520, 3218712, 3265360, 3313380, 3525256, 3534272, 3554880, 3628940, 3678528, 3755164, 3777060, 3786720, 3810387, 3918432, 4023390, 4028864, 4147360, 4291616, 4316640, 4354728, 4406570, 4417840, 4598160, 4693955, 4898040, 4976832, 5036080, 5080516, 5287884, 5301408, 5364520, 5443410, 5597760, 5632746, 5806304, 6043296, 6130880, 6169198, 6221040, 6350645, 6437424, 6530720, 6609855, 6626760, 7050512, 7257880, 7510328, 7554120, 7573440, 7620774, 7836864, 8046780, 8294720, 8583232, 8633280, 8709456, 8813140, 8835680, 9196320, 9253797, 9387910, 9796080, 10072160, 10161032, 10575768, 10602816, 10729040, 10886820, 11265492, 11612608, 12086592, 12338396, 12442080, 12701290, 12874848, 13061440, 13219710, 13253520, 14081865, 14101024, 14515760, 15020656, 15108240, 15241548, 15422995, 16093560, 17418912, 17626280, 17671360, 18392640, 18507594, 18775820, 19051935, 19592160, 20144320, 20322064, 21151536, 21458080, 21592193, 21773640, 22530984, 24676792, 24884160, 25402580, 25749696, 26439420, 26507040, 28163730, 28202048, 29031520, 30041312, 30216480, 30483096, 30845990, 32187120, 34837824, 35252560, 37015188, 37551640, 38103870, 39184320, 40644128, 42303072, 42916160, 43184386, 43547280, 45061968, 46268985, 49353584, 50805160, 52878840, 53014080, 56327460, 58063040, 60082624, 60432960, 60966192, 61691980, 64374240, 64776579, 70505120, 74030376, 75103280, 76207740, 81288256, 84606144, 86368772, 87094560, 90123936, 92537970, 98707168, 101610320, 105757680, 107960965, 112654920, 121932384, 123383960, 128748480, 129553158, 141010240, 148060752, 150206560, 152415480, 172737544, 174189120, 180247872, 185075940, 197414336, 203220640, 211515360, 215921930, 225309840, 243864768, 246767920, 259106316, 296121504, 300413120, 304830960, 323882895, 345475088, 370151880, 406441280, 423030720, 431843860, 450619680, 493535840, 518212632, 592243008, 609661920, 647765790, 690950176, 740303760, 863687720, 901239360, 987071680, 1036425264, 1219323840, 1295531580, 1381900352, 1480607520, 1727375440, 2072850528, 2591063160, 2961215040, 3454750880, 4145701056, 5182126320, 6909501760, 10364252640, 20728505280]

約数ペア:

[(1, 20728505280), (2, 10364252640), (3, 6909501760), (4, 5182126320), (5, 4145701056), (6, 3454750880), (7, 2961215040), (8, 2591063160), (10, 2072850528), (12, 1727375440), (14, 1480607520), (15, 1381900352), (16, 1295531580), (17, 1219323840), (20, 1036425264), (21, 987071680), (23, 901239360), (24, 863687720), (28, 740303760), (30, 690950176), (32, 647765790), (34, 609661920), (35, 592243008), (40, 518212632), (42, 493535840), (46, 450619680), (48, 431843860), (49, 423030720), (51, 406441280), (56, 370151880), (60, 345475088), (64, 323882895), (68, 304830960), (69, 300413120), (70, 296121504), (80, 259106316), (84, 246767920), (85, 243864768), (92, 225309840), (96, 215921930), (98, 211515360), (102, 203220640), (105, 197414336), (112, 185075940), (115, 180247872), (119, 174189120), (120, 172737544), (136, 152415480), (138, 150206560), (140, 148060752), (147, 141010240), (160, 129553158), (161, 128748480), (168, 123383960), (170, 121932384), (184, 112654920), (192, 107960965), (196, 105757680), (204, 101610320), (210, 98707168), (224, 92537970), (230, 90123936), (238, 87094560), (240, 86368772), (245, 84606144), (255, 81288256), (272, 76207740), (276, 75103280), (280, 74030376), (294, 70505120), (320, 64776579), (322, 64374240), (336, 61691980), (340, 60966192), (343, 60432960), (345, 60082624), (357, 58063040), (368, 56327460), (391, 53014080), (392, 52878840), (408, 50805160), (420, 49353584), (448, 46268985), (460, 45061968), (476, 43547280), (480, 43184386), (483, 42916160), (490, 42303072), (510, 40644128), (529, 39184320), (544, 38103870), (552, 37551640), (560, 37015188), (588, 35252560), (595, 34837824), (644, 32187120), (672, 30845990), (680, 30483096), (686, 30216480), (690, 30041312), (714, 29031520), (735, 28202048), (736, 28163730), (782, 26507040), (784, 26439420), (805, 25749696), (816, 25402580), (833, 24884160), (840, 24676792), (920, 22530984), (952, 21773640), (960, 21592193), (966, 21458080), (980, 21151536), (1020, 20322064), (1029, 20144320), (1058, 19592160), (1088, 19051935), (1104, 18775820), (1120, 18507594), (1127, 18392640), (1173, 17671360), (1176, 17626280), (1190, 17418912), (1288, 16093560), (1344, 15422995), (1360, 15241548), (1372, 15108240), (1380, 15020656), (1428, 14515760), (1470, 14101024), (1472, 14081865), (1564, 13253520), (1568, 13219710), (1587, 13061440), (1610, 12874848), (1632, 12701290), (1666, 12442080), (1680, 12338396), (1715, 12086592), (1785, 11612608), (1840, 11265492), (1904, 10886820), (1932, 10729040), (1955, 10602816), (1960, 10575768), (2040, 10161032), (2058, 10072160), (2116, 9796080), (2208, 9387910), (2240, 9253797), (2254, 9196320), (2346, 8835680), (2352, 8813140), (2380, 8709456), (2401, 8633280), (2415, 8583232), (2499, 8294720), (2576, 8046780), (2645, 7836864), (2720, 7620774), (2737, 7573440), (2744, 7554120), (2760, 7510328), (2856, 7257880), (2940, 7050512), (3128, 6626760), (3136, 6609855), (3174, 6530720), (3220, 6437424), (3264, 6350645), (3332, 6221040), (3360, 6169198), (3381, 6130880), (3430, 6043296), (3570, 5806304), (3680, 5632746), (3703, 5597760), (3808, 5443410), (3864, 5364520), (3910, 5301408), (3920, 5287884), (4080, 5080516), (4116, 5036080), (4165, 4976832), (4232, 4898040), (4416, 4693955), (4508, 4598160), (4692, 4417840), (4704, 4406570), (4760, 4354728), (4802, 4316640), (4830, 4291616), (4998, 4147360), (5145, 4028864), (5152, 4023390), (5290, 3918432), (5440, 3810387), (5474, 3786720), (5488, 3777060), (5520, 3755164), (5635, 3678528), (5712, 3628940), (5831, 3554880), (5865, 3534272), (5880, 3525256), (6256, 3313380), (6348, 3265360), (6440, 3218712), (6664, 3110520), (6720, 3084599), (6762, 3065440), (6860, 3021648), (7140, 2903152), (7203, 2877760), (7360, 2816373), (7406, 2798880), (7616, 2721705), (7728, 2682260), (7820, 2650704), (7840, 2643942), (7889, 2627520), (7935, 2612288), (8160, 2540258), (8211, 2524480), (8232, 2518040), (8330, 2488416), (8464, 2449020), (8993, 2304960), (9016, 2299080), (9384, 2208920), (9408, 2203285), (9520, 2177364), (9604, 2158320), (9660, 2145808), (9996, 2073680), (10290, 2014432), (10304, 2011695), (10580, 1959216), (10948, 1893360), (10976, 1888530), (11040, 1877582), (11109, 1865920), (11270, 1839264), (11424, 1814470), (11662, 1777440), (11730, 1767136), (11760, 1762628), (12005, 1726656), (12495, 1658944), (12512, 1656690), (12696, 1632680), (12880, 1609356), (13328, 1555260), (13524, 1532720), (13685, 1514688), (13720, 1510824), (14280, 1451576), (14406, 1438880), (14812, 1399440), (15456, 1341130), (15640, 1325352), (15680, 1321971), (15778, 1313760), (15870, 1306144), (16320, 1270129), (16422, 1262240), (16464, 1259020), (16660, 1244208), (16905, 1226176), (16928, 1224510), (17493, 1184960), (17986, 1152480), (18032, 1149540), (18515, 1119552), (18768, 1104460), (19040, 1088682), (19159, 1081920), (19208, 1079160), (19320, 1072904), (19992, 1036840), (20580, 1007216), (21160, 979608), (21896, 946680), (21952, 944265), (22080, 938791), (22218, 932960), (22540, 919632), (22848, 907235), (23324, 888720), (23460, 883568), (23520, 881314), (23667, 875840), (24010, 863328), (24990, 829472), (25024, 828345), (25392, 816340), (25760, 804678), (25921, 799680), (26656, 777630), (26979, 768320), (27048, 766360), (27370, 757344), (27440, 755412), (28560, 725788), (28812, 719440), (29155, 710976), (29624, 699720), (30912, 670565), (31280, 662676), (31556, 656880), (31740, 653072), (32844, 631120), (32928, 629510), (33320, 622104), (33810, 613088), (33856, 612255), (34986, 592480), (35972, 576240), (36015, 575552), (36064, 574770), (37030, 559776), (37536, 552230), (38080, 544341), (38318, 540960), (38416, 539580), (38640, 536452), (39445, 525504), (39984, 518420), (40817, 507840), (41055, 504896), (41160, 503608), (42320, 489804), (43792, 473340), (44436, 466480), (44965, 460992), (45080, 459816), (46648, 444360), (46920, 441784), (47040, 440657), (47334, 437920), (48020, 431664), (49980, 414736), (50784, 408170), (51520, 402339), (51842, 399840), (53312, 388815), (53958, 384160), (54096, 383180), (54740, 378672), (54880, 377706), (55223, 375360), (55545, 373184), (57120, 362894), (57477, 360640), (57624, 359720), (58310, 355488), (59248, 349860), (62560, 331338), (62951, 329280), (63112, 328440), (63480, 326536), (65688, 315560), (65856, 314755), (66640, 311052), (67620, 306544), (69972, 296240), (71944, 288120), (72030, 287776), (72128, 287385), (74060, 279888), (75072, 276115), (76636, 270480), (76832, 269790), (77280, 268226), (77763, 266560), (78890, 262752), (79968, 259210), (81634, 253920), (82110, 252448), (82320, 251804), (84640, 244902), (87465, 236992), (87584, 236670), (88872, 233240), (89930, 230496), (90160, 229908), (93296, 222180), (93840, 220892), (94668, 218960), (95795, 216384), (96040, 215832), (99960, 207368), (101568, 204085), (103684, 199920), (107916, 192080), (108192, 191590), (109480, 189336), (109760, 188853), (110446, 187680), (111090, 186592), (114240, 181447), (114954, 180320), (115248, 179860), (116620, 177744), (118335, 175168), (118496, 174930), (122451, 169280), (125120, 165669), (125902, 164640), (126224, 164220), (126960, 163268), (129605, 159936), (131376, 157780), (133280, 155526), (134113, 154560), (134895, 153664), (135240, 153272), (139944, 148120), (143888, 144060)]