20493291520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 312

約数和(自身を含む): 55257403392

約数和(自身を除く): 34764111872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 169, 191, 208, 248, 256, 260, 310, 320, 338, 382, 403, 416, 496, 512, 520, 620, 640, 676, 764, 806, 832, 845, 955, 992, 1024, 1040, 1240, 1280, 1352, 1528, 1612, 1664, 1690, 1910, 1984, 2015, 2048, 2080, 2480, 2483, 2560, 2704, 3056, 3224, 3328, 3380, 3820, 3968, 4030, 4096, 4160, 4960, 4966, 5120, 5239, 5408, 5921, 6112, 6448, 6656, 6760, 7640, 7936, 8060, 8320, 9920, 9932, 10240, 10478, 10816, 11842, 12224, 12415, 12896, 13312, 13520, 15280, 15872, 16120, 16640, 19840, 19864, 20480, 20956, 21632, 23684, 24448, 24830, 25792, 26195, 26624, 27040, 29605, 30560, 31744, 32240, 32279, 33280, 39680, 39728, 41912, 43264, 47368, 48896, 49660, 51584, 52390, 53248, 54080, 59210, 61120, 63488, 64480, 64558, 66560, 76973, 79360, 79456, 83824, 86528, 94736, 97792, 99320, 103168, 104780, 108160, 118420, 122240, 126976, 128960, 129116, 133120, 153946, 158720, 158912, 161395, 167648, 173056, 189472, 195584, 198640, 206336, 209560, 216320, 236840, 244480, 257920, 258232, 266240, 307892, 317440, 317824, 322790, 335296, 346112, 378944, 384865, 391168, 397280, 412672, 419120, 432640, 473680, 488960, 515840, 516464, 615784, 634880, 635648, 645580, 670592, 692224, 757888, 769730, 782336, 794560, 825344, 838240, 865280, 947360, 977920, 1000649, 1031680, 1032928, 1231568, 1271296, 1291160, 1341184, 1515776, 1539460, 1589120, 1650688, 1676480, 1730560, 1894720, 1955840, 2001298, 2063360, 2065856, 2463136, 2542592, 2582320, 2682368, 3031552, 3078920, 3178240, 3352960, 3461120, 3789440, 3911680, 4002596, 4126720, 4131712, 4926272, 5003245, 5085184, 5164640, 5364736, 6063104, 6157840, 6356480, 6705920, 7578880, 8005192, 8253440, 8263424, 9852544, 10006490, 10170368, 10329280, 10729472, 12126208, 12315680, 12712960, 13411840, 15157760, 16010384, 16526848, 19705088, 20012980, 20658560, 21458944, 24252416, 24631360, 25425920, 26823680, 30315520, 32020768, 33053696, 39410176, 40025960, 41317120, 49262720, 50851840, 53647360, 60631040, 64041536, 66107392, 78820352, 80051920, 82634240, 98525440, 107294720, 121262080, 128083072, 132214784, 157640704, 160103840, 165268480, 197050880, 256166144, 315281408, 320207680, 330536960, 394101760, 512332288, 640415360, 661073920, 788203520, 1024664576, 1280830720, 1576407040, 2049329152, 2561661440, 4098658304, 5123322880, 10246645760, 20493291520]

約数ペア:

[(1, 20493291520), (2, 10246645760), (4, 5123322880), (5, 4098658304), (8, 2561661440), (10, 2049329152), (13, 1576407040), (16, 1280830720), (20, 1024664576), (26, 788203520), (31, 661073920), (32, 640415360), (40, 512332288), (52, 394101760), (62, 330536960), (64, 320207680), (65, 315281408), (80, 256166144), (104, 197050880), (124, 165268480), (128, 160103840), (130, 157640704), (155, 132214784), (160, 128083072), (169, 121262080), (191, 107294720), (208, 98525440), (248, 82634240), (256, 80051920), (260, 78820352), (310, 66107392), (320, 64041536), (338, 60631040), (382, 53647360), (403, 50851840), (416, 49262720), (496, 41317120), (512, 40025960), (520, 39410176), (620, 33053696), (640, 32020768), (676, 30315520), (764, 26823680), (806, 25425920), (832, 24631360), (845, 24252416), (955, 21458944), (992, 20658560), (1024, 20012980), (1040, 19705088), (1240, 16526848), (1280, 16010384), (1352, 15157760), (1528, 13411840), (1612, 12712960), (1664, 12315680), (1690, 12126208), (1910, 10729472), (1984, 10329280), (2015, 10170368), (2048, 10006490), (2080, 9852544), (2480, 8263424), (2483, 8253440), (2560, 8005192), (2704, 7578880), (3056, 6705920), (3224, 6356480), (3328, 6157840), (3380, 6063104), (3820, 5364736), (3968, 5164640), (4030, 5085184), (4096, 5003245), (4160, 4926272), (4960, 4131712), (4966, 4126720), (5120, 4002596), (5239, 3911680), (5408, 3789440), (5921, 3461120), (6112, 3352960), (6448, 3178240), (6656, 3078920), (6760, 3031552), (7640, 2682368), (7936, 2582320), (8060, 2542592), (8320, 2463136), (9920, 2065856), (9932, 2063360), (10240, 2001298), (10478, 1955840), (10816, 1894720), (11842, 1730560), (12224, 1676480), (12415, 1650688), (12896, 1589120), (13312, 1539460), (13520, 1515776), (15280, 1341184), (15872, 1291160), (16120, 1271296), (16640, 1231568), (19840, 1032928), (19864, 1031680), (20480, 1000649), (20956, 977920), (21632, 947360), (23684, 865280), (24448, 838240), (24830, 825344), (25792, 794560), (26195, 782336), (26624, 769730), (27040, 757888), (29605, 692224), (30560, 670592), (31744, 645580), (32240, 635648), (32279, 634880), (33280, 615784), (39680, 516464), (39728, 515840), (41912, 488960), (43264, 473680), (47368, 432640), (48896, 419120), (49660, 412672), (51584, 397280), (52390, 391168), (53248, 384865), (54080, 378944), (59210, 346112), (61120, 335296), (63488, 322790), (64480, 317824), (64558, 317440), (66560, 307892), (76973, 266240), (79360, 258232), (79456, 257920), (83824, 244480), (86528, 236840), (94736, 216320), (97792, 209560), (99320, 206336), (103168, 198640), (104780, 195584), (108160, 189472), (118420, 173056), (122240, 167648), (126976, 161395), (128960, 158912), (129116, 158720), (133120, 153946)]