128425984

素因数分解:

$2^{13}\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 56

約数和(自身を含む): 262062468

約数和(自身を除く): 133636484

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 257, 488, 512, 514, 976, 1024, 1028, 1952, 2048, 2056, 3904, 4096, 4112, 7808, 8192, 8224, 15616, 15677, 16448, 31232, 31354, 32896, 62464, 62708, 65792, 124928, 125416, 131584, 249856, 250832, 263168, 499712, 501664, 526336, 1003328, 1052672, 2006656, 2105344, 4013312, 8026624, 16053248, 32106496, 64212992, 128425984]

約数ペア:

[(1, 128425984), (2, 64212992), (4, 32106496), (8, 16053248), (16, 8026624), (32, 4013312), (61, 2105344), (64, 2006656), (122, 1052672), (128, 1003328), (244, 526336), (256, 501664), (257, 499712), (488, 263168), (512, 250832), (514, 249856), (976, 131584), (1024, 125416), (1028, 124928), (1952, 65792), (2048, 62708), (2056, 62464), (3904, 32896), (4096, 31354), (4112, 31232), (7808, 16448), (8192, 15677), (8224, 15616)]