82051280

素因数分解:

$2^4\times 5^1\times {\mathrm{1025641}}^1$

素因数の和:1025654

約数の個数: 20

約数和(自身を含む): 190769412

約数和(自身を除く): 108718132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1025641, 2051282, 4102564, 5128205, 8205128, 10256410, 16410256, 20512820, 41025640, 82051280]

約数ペア:

[(1, 82051280), (2, 41025640), (4, 20512820), (5, 16410256), (8, 10256410), (10, 8205128), (16, 5128205), (20, 4102564), (40, 2051282), (80, 1025641)]