20478774512

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{691}}^1\times {\mathrm{2473}}^1$

素因数の和:3286

約数の個数: 80

約数和(自身を含む): 45854422272

約数和(自身を除く): 25375647760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 691, 749, 856, 1382, 1498, 1712, 2473, 2764, 2996, 4837, 4946, 5528, 5992, 9674, 9892, 11056, 11984, 17311, 19348, 19784, 34622, 38696, 39568, 69244, 73937, 77392, 138488, 147874, 264611, 276976, 295748, 517559, 529222, 591496, 1035118, 1058444, 1182992, 1708843, 1852277, 2070236, 2116888, 3417686, 3704554, 4140472, 4233776, 6835372, 7409108, 8280944, 11961901, 13670744, 14818216, 23923802, 27341488, 29636432, 47847604, 95695208, 182846201, 191390416, 365692402, 731384804, 1279923407, 1462769608, 2559846814, 2925539216, 5119693628, 10239387256, 20478774512]

約数ペア:

[(1, 20478774512), (2, 10239387256), (4, 5119693628), (7, 2925539216), (8, 2559846814), (14, 1462769608), (16, 1279923407), (28, 731384804), (56, 365692402), (107, 191390416), (112, 182846201), (214, 95695208), (428, 47847604), (691, 29636432), (749, 27341488), (856, 23923802), (1382, 14818216), (1498, 13670744), (1712, 11961901), (2473, 8280944), (2764, 7409108), (2996, 6835372), (4837, 4233776), (4946, 4140472), (5528, 3704554), (5992, 3417686), (9674, 2116888), (9892, 2070236), (11056, 1852277), (11984, 1708843), (17311, 1182992), (19348, 1058444), (19784, 1035118), (34622, 591496), (38696, 529222), (39568, 517559), (69244, 295748), (73937, 276976), (77392, 264611), (138488, 147874)]