256226520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:913

約数の個数: 128

約数和(自身を含む): 842400000

約数和(自身を除く): 586173480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 389, 440, 499, 660, 778, 998, 1167, 1320, 1497, 1556, 1945, 1996, 2334, 2495, 2994, 3112, 3890, 3992, 4279, 4668, 4990, 5489, 5835, 5988, 7485, 7780, 8558, 9336, 9980, 10978, 11670, 11976, 12837, 14970, 15560, 16467, 17116, 19960, 21395, 21956, 23340, 25674, 27445, 29940, 32934, 34232, 42790, 43912, 46680, 51348, 54890, 59880, 64185, 65868, 82335, 85580, 102696, 109780, 128370, 131736, 164670, 171160, 194111, 219560, 256740, 329340, 388222, 513480, 582333, 658680, 776444, 970555, 1164666, 1552888, 1941110, 2135221, 2329332, 2911665, 3882220, 4270442, 4658664, 5823330, 6405663, 7764440, 8540884, 10676105, 11646660, 12811326, 17081768, 21352210, 23293320, 25622652, 32028315, 42704420, 51245304, 64056630, 85408840, 128113260, 256226520]

約数ペア:

[(1, 256226520), (2, 128113260), (3, 85408840), (4, 64056630), (5, 51245304), (6, 42704420), (8, 32028315), (10, 25622652), (11, 23293320), (12, 21352210), (15, 17081768), (20, 12811326), (22, 11646660), (24, 10676105), (30, 8540884), (33, 7764440), (40, 6405663), (44, 5823330), (55, 4658664), (60, 4270442), (66, 3882220), (88, 2911665), (110, 2329332), (120, 2135221), (132, 1941110), (165, 1552888), (220, 1164666), (264, 970555), (330, 776444), (389, 658680), (440, 582333), (499, 513480), (660, 388222), (778, 329340), (998, 256740), (1167, 219560), (1320, 194111), (1497, 171160), (1556, 164670), (1945, 131736), (1996, 128370), (2334, 109780), (2495, 102696), (2994, 85580), (3112, 82335), (3890, 65868), (3992, 64185), (4279, 59880), (4668, 54890), (4990, 51348), (5489, 46680), (5835, 43912), (5988, 42790), (7485, 34232), (7780, 32934), (8558, 29940), (9336, 27445), (9980, 25674), (10978, 23340), (11670, 21956), (11976, 21395), (12837, 19960), (14970, 17116), (15560, 16467)]