257888974

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{2837}}^1$

素因数の和:3040

約数の個数: 32

約数和(自身を含む): 455533056

約数和(自身を除く): 197644082

約数列:

[1, 2, 7, 14, 43, 86, 151, 301, 302, 602, 1057, 2114, 2837, 5674, 6493, 12986, 19859, 39718, 45451, 90902, 121991, 243982, 428387, 853937, 856774, 1707874, 2998709, 5997418, 18420641, 36841282, 128944487, 257888974]

約数ペア:

[(1, 257888974), (2, 128944487), (7, 36841282), (14, 18420641), (43, 5997418), (86, 2998709), (151, 1707874), (301, 856774), (302, 853937), (602, 428387), (1057, 243982), (2114, 121991), (2837, 90902), (5674, 45451), (6493, 39718), (12986, 19859)]