128031232

素因数分解:

$2^9\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 80

約数和(自身を含む): 295606080

約数和(自身を除く): 167574848

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, 1028, 1112, 1792, 1799, 1946, 2056, 2224, 3584, 3598, 3892, 4112, 4448, 7196, 7784, 8224, 8896, 14392, 15568, 16448, 17792, 28784, 31136, 32896, 35584, 35723, 57568, 62272, 65792, 71168, 71446, 115136, 124544, 131584, 142892, 230272, 249088, 250061, 285784, 460544, 498176, 500122, 571568, 921088, 1000244, 1143136, 2000488, 2286272, 4000976, 4572544, 8001952, 9145088, 16003904, 18290176, 32007808, 64015616, 128031232]

約数ペア:

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