256062464

素因数分解:

$2^{10}\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:423

約数の個数: 88

約数和(自身を含む): 591501120

約数和(自身を除く): 335438656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 139, 224, 256, 257, 278, 448, 512, 514, 556, 896, 973, 1024, 1028, 1112, 1792, 1799, 1946, 2056, 2224, 3584, 3598, 3892, 4112, 4448, 7168, 7196, 7784, 8224, 8896, 14392, 15568, 16448, 17792, 28784, 31136, 32896, 35584, 35723, 57568, 62272, 65792, 71168, 71446, 115136, 124544, 131584, 142336, 142892, 230272, 249088, 250061, 263168, 285784, 460544, 498176, 500122, 571568, 921088, 996352, 1000244, 1143136, 1842176, 2000488, 2286272, 4000976, 4572544, 8001952, 9145088, 16003904, 18290176, 32007808, 36580352, 64015616, 128031232, 256062464]

約数ペア:

[(1, 256062464), (2, 128031232), (4, 64015616), (7, 36580352), (8, 32007808), (14, 18290176), (16, 16003904), (28, 9145088), (32, 8001952), (56, 4572544), (64, 4000976), (112, 2286272), (128, 2000488), (139, 1842176), (224, 1143136), (256, 1000244), (257, 996352), (278, 921088), (448, 571568), (512, 500122), (514, 498176), (556, 460544), (896, 285784), (973, 263168), (1024, 250061), (1028, 249088), (1112, 230272), (1792, 142892), (1799, 142336), (1946, 131584), (2056, 124544), (2224, 115136), (3584, 71446), (3598, 71168), (3892, 65792), (4112, 62272), (4448, 57568), (7168, 35723), (7196, 35584), (7784, 32896), (8224, 31136), (8896, 28784), (14392, 17792), (15568, 16448)]