20783508480

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{64433}}^1$

素因数の和:64471

約数の個数: 264

約数和(自身を含む): 82303352352

約数和(自身を除く): 61519843872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1024, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3072, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5120, 5376, 5760, 6720, 7168, 7680, 8064, 8960, 9216, 10080, 10752, 11520, 13440, 15360, 16128, 17920, 20160, 21504, 23040, 26880, 32256, 35840, 40320, 46080, 53760, 64433, 64512, 80640, 107520, 128866, 161280, 193299, 257732, 322165, 322560, 386598, 451031, 515464, 579897, 644330, 773196, 902062, 966495, 1030928, 1159794, 1288660, 1353093, 1546392, 1804124, 1932990, 2061856, 2255155, 2319588, 2577320, 2706186, 2899485, 3092784, 3608248, 3865980, 4059279, 4123712, 4510310, 4639176, 5154640, 5412372, 5798970, 6185568, 6765465, 7216496, 7731960, 8118558, 8247424, 9020620, 9278352, 10309280, 10824744, 11597940, 12371136, 13530930, 14432992, 15463920, 16237116, 16494848, 18041240, 18556704, 20296395, 20618560, 21649488, 23195880, 24742272, 27061860, 28865984, 30927840, 32474232, 32989696, 36082480, 37113408, 40592790, 41237120, 43298976, 46391760, 49484544, 54123720, 57731968, 61855680, 64948464, 65979392, 72164960, 74226816, 81185580, 82474240, 86597952, 92783520, 98969088, 108247440, 115463936, 123711360, 129896928, 144329920, 148453632, 162371160, 164948480, 173195904, 185567040, 197938176, 216494880, 230927872, 247422720, 259793856, 288659840, 296907264, 324742320, 329896960, 346391808, 371134080, 432989760, 461855744, 494845440, 519587712, 577319680, 593814528, 649484640, 692783616, 742268160, 865979520, 989690880, 1039175424, 1154639360, 1298969280, 1385567232, 1484536320, 1731959040, 2078350848, 2309278720, 2597938560, 2969072640, 3463918080, 4156701696, 5195877120, 6927836160, 10391754240, 20783508480]

約数ペア:

[(1, 20783508480), (2, 10391754240), (3, 6927836160), (4, 5195877120), (5, 4156701696), (6, 3463918080), (7, 2969072640), (8, 2597938560), (9, 2309278720), (10, 2078350848), (12, 1731959040), (14, 1484536320), (15, 1385567232), (16, 1298969280), (18, 1154639360), (20, 1039175424), (21, 989690880), (24, 865979520), (28, 742268160), (30, 692783616), (32, 649484640), (35, 593814528), (36, 577319680), (40, 519587712), (42, 494845440), (45, 461855744), (48, 432989760), (56, 371134080), (60, 346391808), (63, 329896960), (64, 324742320), (70, 296907264), (72, 288659840), (80, 259793856), (84, 247422720), (90, 230927872), (96, 216494880), (105, 197938176), (112, 185567040), (120, 173195904), (126, 164948480), (128, 162371160), (140, 148453632), (144, 144329920), (160, 129896928), (168, 123711360), (180, 115463936), (192, 108247440), (210, 98969088), (224, 92783520), (240, 86597952), (252, 82474240), (256, 81185580), (280, 74226816), (288, 72164960), (315, 65979392), (320, 64948464), (336, 61855680), (360, 57731968), (384, 54123720), (420, 49484544), (448, 46391760), (480, 43298976), (504, 41237120), (512, 40592790), (560, 37113408), (576, 36082480), (630, 32989696), (640, 32474232), (672, 30927840), (720, 28865984), (768, 27061860), (840, 24742272), (896, 23195880), (960, 21649488), (1008, 20618560), (1024, 20296395), (1120, 18556704), (1152, 18041240), (1260, 16494848), (1280, 16237116), (1344, 15463920), (1440, 14432992), (1536, 13530930), (1680, 12371136), (1792, 11597940), (1920, 10824744), (2016, 10309280), (2240, 9278352), (2304, 9020620), (2520, 8247424), (2560, 8118558), (2688, 7731960), (2880, 7216496), (3072, 6765465), (3360, 6185568), (3584, 5798970), (3840, 5412372), (4032, 5154640), (4480, 4639176), (4608, 4510310), (5040, 4123712), (5120, 4059279), (5376, 3865980), (5760, 3608248), (6720, 3092784), (7168, 2899485), (7680, 2706186), (8064, 2577320), (8960, 2319588), (9216, 2255155), (10080, 2061856), (10752, 1932990), (11520, 1804124), (13440, 1546392), (15360, 1353093), (16128, 1288660), (17920, 1159794), (20160, 1030928), (21504, 966495), (23040, 902062), (26880, 773196), (32256, 644330), (35840, 579897), (40320, 515464), (46080, 451031), (53760, 386598), (64433, 322560), (64512, 322165), (80640, 257732), (107520, 193299), (128866, 161280)]