20783785680

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1374589}}^1$

素因数の和:1374618

約数の個数: 160

約数和(自身を含む): 81815596800

約数和(自身を除く): 61031811120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 1374589, 2749178, 4123767, 5498356, 6872945, 8247534, 9622123, 10996712, 12371301, 13745890, 16495068, 19244246, 20618835, 21993424, 24742602, 27491780, 28866369, 32990136, 37113903, 38488492, 41237670, 48110615, 49485204, 54983560, 57732738, 61856505, 65980272, 74227806, 76976984, 82475340, 86599107, 96221230, 98970408, 109967120, 115465476, 123713010, 144331845, 148455612, 153953968, 164950680, 173198214, 185569515, 192442460, 197940816, 230930952, 247426020, 259797321, 288663690, 296911224, 329901360, 346396428, 371139030, 384884920, 432995535, 461861904, 494852040, 519594642, 577327380, 593822448, 692792856, 742278060, 769769840, 865991070, 989704080, 1039189284, 1154654760, 1298986605, 1385585712, 1484556120, 1731982140, 2078378568, 2309309520, 2597973210, 2969112240, 3463964280, 4156757136, 5195946420, 6927928560, 10391892840, 20783785680]

約数ペア:

[(1, 20783785680), (2, 10391892840), (3, 6927928560), (4, 5195946420), (5, 4156757136), (6, 3463964280), (7, 2969112240), (8, 2597973210), (9, 2309309520), (10, 2078378568), (12, 1731982140), (14, 1484556120), (15, 1385585712), (16, 1298986605), (18, 1154654760), (20, 1039189284), (21, 989704080), (24, 865991070), (27, 769769840), (28, 742278060), (30, 692792856), (35, 593822448), (36, 577327380), (40, 519594642), (42, 494852040), (45, 461861904), (48, 432995535), (54, 384884920), (56, 371139030), (60, 346396428), (63, 329901360), (70, 296911224), (72, 288663690), (80, 259797321), (84, 247426020), (90, 230930952), (105, 197940816), (108, 192442460), (112, 185569515), (120, 173198214), (126, 164950680), (135, 153953968), (140, 148455612), (144, 144331845), (168, 123713010), (180, 115465476), (189, 109967120), (210, 98970408), (216, 96221230), (240, 86599107), (252, 82475340), (270, 76976984), (280, 74227806), (315, 65980272), (336, 61856505), (360, 57732738), (378, 54983560), (420, 49485204), (432, 48110615), (504, 41237670), (540, 38488492), (560, 37113903), (630, 32990136), (720, 28866369), (756, 27491780), (840, 24742602), (945, 21993424), (1008, 20618835), (1080, 19244246), (1260, 16495068), (1512, 13745890), (1680, 12371301), (1890, 10996712), (2160, 9622123), (2520, 8247534), (3024, 6872945), (3780, 5498356), (5040, 4123767), (7560, 2749178), (15120, 1374589)]