256917248

素因数分解:

$2^8\times 7^1\times {\mathrm{307}}^1\times {\mathrm{467}}^1$

素因数の和:797

約数の個数: 72

約数和(自身を含む): 589260672

約数和(自身を除く): 332343424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 307, 448, 467, 614, 896, 934, 1228, 1792, 1868, 2149, 2456, 3269, 3736, 4298, 4912, 6538, 7472, 8596, 9824, 13076, 14944, 17192, 19648, 26152, 29888, 34384, 39296, 52304, 59776, 68768, 78592, 104608, 119552, 137536, 143369, 209216, 275072, 286738, 418432, 550144, 573476, 836864, 1003583, 1146952, 2007166, 2293904, 4014332, 4587808, 8028664, 9175616, 16057328, 18351232, 32114656, 36702464, 64229312, 128458624, 256917248]

約数ペア:

[(1, 256917248), (2, 128458624), (4, 64229312), (7, 36702464), (8, 32114656), (14, 18351232), (16, 16057328), (28, 9175616), (32, 8028664), (56, 4587808), (64, 4014332), (112, 2293904), (128, 2007166), (224, 1146952), (256, 1003583), (307, 836864), (448, 573476), (467, 550144), (614, 418432), (896, 286738), (934, 275072), (1228, 209216), (1792, 143369), (1868, 137536), (2149, 119552), (2456, 104608), (3269, 78592), (3736, 68768), (4298, 59776), (4912, 52304), (6538, 39296), (7472, 34384), (8596, 29888), (9824, 26152), (13076, 19648), (14944, 17192)]