256273976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{240859}}^1$

素因数の和:240891

約数の個数: 32

約数和(自身を含む): 578064000

約数和(自身を除く): 321790024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 240859, 481718, 963436, 1686013, 1926872, 3372026, 4576321, 6744052, 9152642, 13488104, 18305284, 32034247, 36610568, 64068494, 128136988, 256273976]

約数ペア:

[(1, 256273976), (2, 128136988), (4, 64068494), (7, 36610568), (8, 32034247), (14, 18305284), (19, 13488104), (28, 9152642), (38, 6744052), (56, 4576321), (76, 3372026), (133, 1926872), (152, 1686013), (266, 963436), (532, 481718), (1064, 240859)]