20964769280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2977

約数の個数: 320

約数和(自身を含む): 63883911168

約数和(自身を除く): 42919141888

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 182, 208, 217, 224, 248, 256, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 512, 520, 560, 620, 640, 728, 806, 832, 868, 896, 910, 992, 1040, 1085, 1120, 1240, 1280, 1456, 1612, 1664, 1736, 1792, 1820, 1984, 2015, 2080, 2170, 2240, 2480, 2560, 2821, 2903, 2912, 3224, 3328, 3472, 3584, 3640, 3968, 4030, 4160, 4340, 4480, 4960, 5642, 5806, 5824, 6448, 6656, 6944, 7280, 7936, 8060, 8320, 8680, 8960, 9920, 11284, 11612, 11648, 12896, 13888, 14105, 14515, 14560, 15872, 16120, 16640, 17360, 17920, 19840, 20321, 22568, 23224, 23296, 25792, 27776, 28210, 29030, 29120, 32240, 33280, 34720, 37739, 39680, 40642, 45136, 46448, 46592, 51584, 55552, 56420, 58060, 58240, 64480, 69440, 75478, 79360, 81284, 89993, 90272, 92896, 101605, 103168, 111104, 112840, 116120, 116480, 128960, 138880, 150956, 162568, 179986, 180544, 185792, 188695, 203210, 206336, 225680, 232240, 232960, 257920, 264173, 277760, 301912, 325136, 359972, 361088, 371584, 377390, 406420, 449965, 451360, 464480, 515840, 528346, 555520, 603824, 629951, 650272, 719944, 722176, 743168, 754780, 812840, 899930, 902720, 928960, 1031680, 1056692, 1169909, 1207648, 1259902, 1300544, 1320865, 1439888, 1444352, 1486336, 1509560, 1625680, 1799860, 1805440, 1857920, 2113384, 2339818, 2415296, 2519804, 2601088, 2641730, 2879776, 3019120, 3149755, 3251360, 3599720, 3610880, 3715840, 4226768, 4679636, 4830592, 5039608, 5202176, 5283460, 5759552, 5849545, 6038240, 6299510, 6502720, 7199440, 7221760, 7431680, 8189363, 8453536, 9359272, 9661184, 10079216, 10404352, 10566920, 11519104, 11699090, 12076480, 12599020, 13005440, 14398880, 16378726, 16907072, 18718544, 19322368, 20158432, 21133840, 23038208, 23398180, 24152960, 25198040, 26010880, 28797760, 32757452, 33814144, 37437088, 40316864, 40946815, 42267680, 46076416, 46796360, 48305920, 50396080, 52021760, 57595520, 65514904, 67628288, 74874176, 80633728, 81893630, 84535360, 93592720, 96611840, 100792160, 115191040, 131029808, 135256576, 149748352, 161267456, 163787260, 169070720, 187185440, 201584320, 230382080, 262059616, 299496704, 322534912, 327574520, 338141440, 374370880, 403168640, 524119232, 598993408, 655149040, 676282880, 748741760, 806337280, 1048238464, 1310298080, 1497483520, 1612674560, 2096476928, 2620596160, 2994967040, 4192953856, 5241192320, 10482384640, 20964769280]

約数ペア:

[(1, 20964769280), (2, 10482384640), (4, 5241192320), (5, 4192953856), (7, 2994967040), (8, 2620596160), (10, 2096476928), (13, 1612674560), (14, 1497483520), (16, 1310298080), (20, 1048238464), (26, 806337280), (28, 748741760), (31, 676282880), (32, 655149040), (35, 598993408), (40, 524119232), (52, 403168640), (56, 374370880), (62, 338141440), (64, 327574520), (65, 322534912), (70, 299496704), (80, 262059616), (91, 230382080), (104, 201584320), (112, 187185440), (124, 169070720), (128, 163787260), (130, 161267456), (140, 149748352), (155, 135256576), (160, 131029808), (182, 115191040), (208, 100792160), (217, 96611840), (224, 93592720), (248, 84535360), (256, 81893630), (260, 80633728), (280, 74874176), (310, 67628288), (320, 65514904), (364, 57595520), (403, 52021760), (416, 50396080), (434, 48305920), (448, 46796360), (455, 46076416), (496, 42267680), (512, 40946815), (520, 40316864), (560, 37437088), (620, 33814144), (640, 32757452), (728, 28797760), (806, 26010880), (832, 25198040), (868, 24152960), (896, 23398180), (910, 23038208), (992, 21133840), (1040, 20158432), (1085, 19322368), (1120, 18718544), (1240, 16907072), (1280, 16378726), (1456, 14398880), (1612, 13005440), (1664, 12599020), (1736, 12076480), (1792, 11699090), (1820, 11519104), (1984, 10566920), (2015, 10404352), (2080, 10079216), (2170, 9661184), (2240, 9359272), (2480, 8453536), (2560, 8189363), (2821, 7431680), (2903, 7221760), (2912, 7199440), (3224, 6502720), (3328, 6299510), (3472, 6038240), (3584, 5849545), (3640, 5759552), (3968, 5283460), (4030, 5202176), (4160, 5039608), (4340, 4830592), (4480, 4679636), (4960, 4226768), (5642, 3715840), (5806, 3610880), (5824, 3599720), (6448, 3251360), (6656, 3149755), (6944, 3019120), (7280, 2879776), (7936, 2641730), (8060, 2601088), (8320, 2519804), (8680, 2415296), (8960, 2339818), (9920, 2113384), (11284, 1857920), (11612, 1805440), (11648, 1799860), (12896, 1625680), (13888, 1509560), (14105, 1486336), (14515, 1444352), (14560, 1439888), (15872, 1320865), (16120, 1300544), (16640, 1259902), (17360, 1207648), (17920, 1169909), (19840, 1056692), (20321, 1031680), (22568, 928960), (23224, 902720), (23296, 899930), (25792, 812840), (27776, 754780), (28210, 743168), (29030, 722176), (29120, 719944), (32240, 650272), (33280, 629951), (34720, 603824), (37739, 555520), (39680, 528346), (40642, 515840), (45136, 464480), (46448, 451360), (46592, 449965), (51584, 406420), (55552, 377390), (56420, 371584), (58060, 361088), (58240, 359972), (64480, 325136), (69440, 301912), (75478, 277760), (79360, 264173), (81284, 257920), (89993, 232960), (90272, 232240), (92896, 225680), (101605, 206336), (103168, 203210), (111104, 188695), (112840, 185792), (116120, 180544), (116480, 179986), (128960, 162568), (138880, 150956)]