256217896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{78691}}^1$

素因数の和:78745

約数の個数: 32

約数和(自身を含む): 538253280

約数和(自身を除く): 282035384

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 78691, 157382, 314764, 629528, 865601, 1731202, 2911567, 3462404, 5823134, 6924808, 11646268, 23292536, 32027237, 64054474, 128108948, 256217896]

約数ペア:

[(1, 256217896), (2, 128108948), (4, 64054474), (8, 32027237), (11, 23292536), (22, 11646268), (37, 6924808), (44, 5823134), (74, 3462404), (88, 2911567), (148, 1731202), (296, 865601), (407, 629528), (814, 314764), (1628, 157382), (3256, 78691)]