20790256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68389}}^1$

素因数の和:68416

約数の個数: 20

約数和(自身を含む): 42401800

約数和(自身を除く): 21611544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68389, 136778, 273556, 547112, 1094224, 1299391, 2598782, 5197564, 10395128, 20790256]

約数ペア:

[(1, 20790256), (2, 10395128), (4, 5197564), (8, 2598782), (16, 1299391), (19, 1094224), (38, 547112), (76, 273556), (152, 136778), (304, 68389)]