134421520

素因数分解:

$2^4\times 5^1\times {\mathrm{1680269}}^1$

素因数の和:1680282

約数の個数: 20

約数和(自身を含む): 312530220

約数和(自身を除く): 178108700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1680269, 3360538, 6721076, 8401345, 13442152, 16802690, 26884304, 33605380, 67210760, 134421520]

約数ペア:

[(1, 134421520), (2, 67210760), (4, 33605380), (5, 26884304), (8, 16802690), (10, 13442152), (16, 8401345), (20, 6721076), (40, 3360538), (80, 1680269)]