257517794

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{19709}}^1$

素因数の和:19897

約数の個数: 16

約数和(自身を含む): 397353600

約数和(自身を除く): 139835806

約数列:

[1, 2, 47, 94, 139, 278, 6533, 13066, 19709, 39418, 926323, 1852646, 2739551, 5479102, 128758897, 257517794]

約数ペア:

[(1, 257517794), (2, 128758897), (47, 5479102), (94, 2739551), (139, 1852646), (278, 926323), (6533, 39418), (13066, 19709)]