81720382

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{17929}}^1$

素因数の和:18027

約数の個数: 16

約数和(自身を含む): 127805040

約数和(自身を除く): 46084658

約数列:

[1, 2, 43, 53, 86, 106, 2279, 4558, 17929, 35858, 770947, 950237, 1541894, 1900474, 40860191, 81720382]

約数ペア:

[(1, 81720382), (2, 40860191), (43, 1900474), (53, 1541894), (86, 950237), (106, 770947), (2279, 35858), (4558, 17929)]