28165984

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 74462976

約数和(自身を除く): 46296992

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 49, 56, 71, 77, 88, 92, 98, 112, 142, 154, 161, 176, 184, 196, 224, 253, 284, 308, 322, 352, 368, 392, 497, 506, 539, 568, 616, 644, 736, 781, 784, 994, 1012, 1078, 1127, 1136, 1232, 1288, 1562, 1568, 1633, 1771, 1988, 2024, 2156, 2254, 2272, 2464, 2576, 3124, 3266, 3479, 3542, 3976, 4048, 4312, 4508, 5152, 5467, 6248, 6532, 6958, 7084, 7952, 8096, 8624, 9016, 10934, 11431, 12397, 12496, 13064, 13916, 14168, 15904, 17248, 17963, 18032, 21868, 22862, 24794, 24992, 26128, 27832, 28336, 35926, 36064, 38269, 43736, 45724, 49588, 52256, 55664, 56672, 71852, 76538, 80017, 87472, 91448, 99176, 111328, 125741, 143704, 153076, 160034, 174944, 182896, 198352, 251482, 287408, 306152, 320068, 365792, 396704, 502964, 574816, 612304, 640136, 880187, 1005928, 1224608, 1280272, 1760374, 2011856, 2560544, 3520748, 4023712, 7041496, 14082992, 28165984]

約数ペア:

[(1, 28165984), (2, 14082992), (4, 7041496), (7, 4023712), (8, 3520748), (11, 2560544), (14, 2011856), (16, 1760374), (22, 1280272), (23, 1224608), (28, 1005928), (32, 880187), (44, 640136), (46, 612304), (49, 574816), (56, 502964), (71, 396704), (77, 365792), (88, 320068), (92, 306152), (98, 287408), (112, 251482), (142, 198352), (154, 182896), (161, 174944), (176, 160034), (184, 153076), (196, 143704), (224, 125741), (253, 111328), (284, 99176), (308, 91448), (322, 87472), (352, 80017), (368, 76538), (392, 71852), (497, 56672), (506, 55664), (539, 52256), (568, 49588), (616, 45724), (644, 43736), (736, 38269), (781, 36064), (784, 35926), (994, 28336), (1012, 27832), (1078, 26128), (1127, 24992), (1136, 24794), (1232, 22862), (1288, 21868), (1562, 18032), (1568, 17963), (1633, 17248), (1771, 15904), (1988, 14168), (2024, 13916), (2156, 13064), (2254, 12496), (2272, 12397), (2464, 11431), (2576, 10934), (3124, 9016), (3266, 8624), (3479, 8096), (3542, 7952), (3976, 7084), (4048, 6958), (4312, 6532), (4508, 6248), (5152, 5467)]