81356782

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{9871}}^1$

素因数の和:10203

約数の個数: 16

約数和(自身を含む): 131850432

約数和(自身を除く): 50493650

約数列:

[1, 2, 13, 26, 317, 634, 4121, 8242, 9871, 19742, 128323, 256646, 3129107, 6258214, 40678391, 81356782]

約数ペア:

[(1, 81356782), (2, 40678391), (13, 6258214), (26, 3129107), (317, 256646), (634, 128323), (4121, 19742), (8242, 9871)]