257720450014

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{6871}}^1\times {\mathrm{147671}}^1$

素因数の和:154671

約数の個数: 16

約数和(自身を含む): 389683961856

約数和(自身を除く): 131963511842

約数列:

[1, 2, 127, 254, 6871, 13742, 147671, 295342, 872617, 1745234, 18754217, 37508434, 1014647441, 2029294882, 128860225007, 257720450014]

約数ペア:

[(1, 257720450014), (2, 128860225007), (127, 2029294882), (254, 1014647441), (6871, 37508434), (13742, 18754217), (147671, 1745234), (295342, 872617)]