257494272

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 790390272

約数和(自身を除く): 532896000

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 211, 224, 227, 256, 336, 384, 422, 448, 454, 633, 672, 681, 768, 844, 896, 908, 1266, 1344, 1362, 1477, 1589, 1688, 1792, 1816, 2532, 2688, 2724, 2954, 3178, 3376, 3632, 4431, 4767, 5064, 5376, 5448, 5908, 6356, 6752, 7264, 8862, 9534, 10128, 10896, 11816, 12712, 13504, 14528, 17724, 19068, 20256, 21792, 23632, 25424, 27008, 29056, 35448, 38136, 40512, 43584, 47264, 47897, 50848, 54016, 58112, 70896, 76272, 81024, 87168, 94528, 95794, 101696, 141792, 143691, 152544, 162048, 174336, 189056, 191588, 203392, 283584, 287382, 305088, 335279, 378112, 383176, 406784, 567168, 574764, 610176, 670558, 766352, 1005837, 1134336, 1149528, 1220352, 1341116, 1532704, 2011674, 2299056, 2682232, 3065408, 4023348, 4598112, 5364464, 6130816, 8046696, 9196224, 10728928, 12261632, 16093392, 18392448, 21457856, 32186784, 36784896, 42915712, 64373568, 85831424, 128747136, 257494272]

約数ペア:

[(1, 257494272), (2, 128747136), (3, 85831424), (4, 64373568), (6, 42915712), (7, 36784896), (8, 32186784), (12, 21457856), (14, 18392448), (16, 16093392), (21, 12261632), (24, 10728928), (28, 9196224), (32, 8046696), (42, 6130816), (48, 5364464), (56, 4598112), (64, 4023348), (84, 3065408), (96, 2682232), (112, 2299056), (128, 2011674), (168, 1532704), (192, 1341116), (211, 1220352), (224, 1149528), (227, 1134336), (256, 1005837), (336, 766352), (384, 670558), (422, 610176), (448, 574764), (454, 567168), (633, 406784), (672, 383176), (681, 378112), (768, 335279), (844, 305088), (896, 287382), (908, 283584), (1266, 203392), (1344, 191588), (1362, 189056), (1477, 174336), (1589, 162048), (1688, 152544), (1792, 143691), (1816, 141792), (2532, 101696), (2688, 95794), (2724, 94528), (2954, 87168), (3178, 81024), (3376, 76272), (3632, 70896), (4431, 58112), (4767, 54016), (5064, 50848), (5376, 47897), (5448, 47264), (5908, 43584), (6356, 40512), (6752, 38136), (7264, 35448), (8862, 29056), (9534, 27008), (10128, 25424), (10896, 23632), (11816, 21792), (12712, 20256), (13504, 19068), (14528, 17724)]