257517568

素因数分解:

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

素因数の和:134

約数の個数: 192

約数和(自身を含む): 679311360

約数和(自身を除く): 421793792

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 56, 64, 71, 77, 88, 92, 112, 128, 142, 154, 161, 176, 184, 224, 253, 256, 284, 308, 322, 352, 368, 448, 497, 506, 512, 568, 616, 644, 704, 736, 781, 896, 994, 1012, 1024, 1136, 1232, 1288, 1408, 1472, 1562, 1633, 1771, 1792, 1988, 2024, 2048, 2272, 2464, 2576, 2816, 2944, 3124, 3266, 3542, 3584, 3976, 4048, 4544, 4928, 5152, 5467, 5632, 5888, 6248, 6532, 7084, 7168, 7952, 8096, 9088, 9856, 10304, 10934, 11264, 11431, 11776, 12496, 13064, 14168, 14336, 15904, 16192, 17963, 18176, 19712, 20608, 21868, 22528, 22862, 23552, 24992, 26128, 28336, 31808, 32384, 35926, 36352, 39424, 41216, 43736, 45724, 47104, 49984, 52256, 56672, 63616, 64768, 71852, 72704, 78848, 82432, 87472, 91448, 99968, 104512, 113344, 125741, 127232, 129536, 143704, 145408, 157696, 164864, 174944, 182896, 199936, 209024, 226688, 251482, 254464, 259072, 287408, 329728, 349888, 365792, 399872, 418048, 453376, 502964, 508928, 518144, 574816, 699776, 731584, 799744, 836096, 906752, 1005928, 1017856, 1149632, 1399552, 1463168, 1599488, 1672192, 1813504, 2011856, 2299264, 2799104, 2926336, 3344384, 3627008, 4023712, 4598528, 5598208, 5852672, 8047424, 9197056, 11196416, 11705344, 16094848, 18394112, 23410688, 32189696, 36788224, 64379392, 128758784, 257517568]

約数ペア:

[(1, 257517568), (2, 128758784), (4, 64379392), (7, 36788224), (8, 32189696), (11, 23410688), (14, 18394112), (16, 16094848), (22, 11705344), (23, 11196416), (28, 9197056), (32, 8047424), (44, 5852672), (46, 5598208), (56, 4598528), (64, 4023712), (71, 3627008), (77, 3344384), (88, 2926336), (92, 2799104), (112, 2299264), (128, 2011856), (142, 1813504), (154, 1672192), (161, 1599488), (176, 1463168), (184, 1399552), (224, 1149632), (253, 1017856), (256, 1005928), (284, 906752), (308, 836096), (322, 799744), (352, 731584), (368, 699776), (448, 574816), (497, 518144), (506, 508928), (512, 502964), (568, 453376), (616, 418048), (644, 399872), (704, 365792), (736, 349888), (781, 329728), (896, 287408), (994, 259072), (1012, 254464), (1024, 251482), (1136, 226688), (1232, 209024), (1288, 199936), (1408, 182896), (1472, 174944), (1562, 164864), (1633, 157696), (1771, 145408), (1792, 143704), (1988, 129536), (2024, 127232), (2048, 125741), (2272, 113344), (2464, 104512), (2576, 99968), (2816, 91448), (2944, 87472), (3124, 82432), (3266, 78848), (3542, 72704), (3584, 71852), (3976, 64768), (4048, 63616), (4544, 56672), (4928, 52256), (5152, 49984), (5467, 47104), (5632, 45724), (5888, 43736), (6248, 41216), (6532, 39424), (7084, 36352), (7168, 35926), (7952, 32384), (8096, 31808), (9088, 28336), (9856, 26128), (10304, 24992), (10934, 23552), (11264, 22862), (11431, 22528), (11776, 21868), (12496, 20608), (13064, 19712), (14168, 18176), (14336, 17963), (15904, 16192)]