20405144

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{54269}}^1$

素因数の和:54322

約数の個数: 16

約数和(自身を含む): 39074400

約数和(自身を除く): 18669256

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 54269, 108538, 217076, 434152, 2550643, 5101286, 10202572, 20405144]

約数ペア:

[(1, 20405144), (2, 10202572), (4, 5101286), (8, 2550643), (47, 434152), (94, 217076), (188, 108538), (376, 54269)]