2581118960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{4651}}^1$

素因数の和:5662

約数の個数: 80

約数和(自身を含む): 6866798592

約数和(自身を除く): 4285679632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 991, 1982, 3964, 4651, 4955, 6937, 7928, 9302, 9910, 13874, 15856, 18604, 19820, 23255, 27748, 32557, 34685, 37208, 39640, 46510, 55496, 65114, 69370, 74416, 79280, 93020, 110992, 130228, 138740, 162785, 186040, 260456, 277480, 325570, 372080, 520912, 554960, 651140, 1302280, 2604560, 4609141, 9218282, 18436564, 23045705, 32263987, 36873128, 46091410, 64527974, 73746256, 92182820, 129055948, 161319935, 184365640, 258111896, 322639870, 368731280, 516223792, 645279740, 1290559480, 2581118960]

約数ペア:

[(1, 2581118960), (2, 1290559480), (4, 645279740), (5, 516223792), (7, 368731280), (8, 322639870), (10, 258111896), (14, 184365640), (16, 161319935), (20, 129055948), (28, 92182820), (35, 73746256), (40, 64527974), (56, 46091410), (70, 36873128), (80, 32263987), (112, 23045705), (140, 18436564), (280, 9218282), (560, 4609141), (991, 2604560), (1982, 1302280), (3964, 651140), (4651, 554960), (4955, 520912), (6937, 372080), (7928, 325570), (9302, 277480), (9910, 260456), (13874, 186040), (15856, 162785), (18604, 138740), (19820, 130228), (23255, 110992), (27748, 93020), (32557, 79280), (34685, 74416), (37208, 69370), (39640, 65114), (46510, 55496)]