257431216

素因数分解:

$2^4\times 7^1\times {\mathrm{2298493}}^1$

素因数の和:2298508

約数の個数: 20

約数和(自身を含む): 570026512

約数和(自身を除く): 312595296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2298493, 4596986, 9193972, 16089451, 18387944, 32178902, 36775888, 64357804, 128715608, 257431216]

約数ペア:

[(1, 257431216), (2, 128715608), (4, 64357804), (7, 36775888), (8, 32178902), (14, 18387944), (16, 16089451), (28, 9193972), (56, 4596986), (112, 2298493)]