26311280

素因数分解:

$2^4\times 5^1\times {\mathrm{328891}}^1$

素因数の和:328904

約数の個数: 20

約数和(自身を含む): 61173912

約数和(自身を除く): 34862632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 328891, 657782, 1315564, 1644455, 2631128, 3288910, 5262256, 6577820, 13155640, 26311280]

約数ペア:

[(1, 26311280), (2, 13155640), (4, 6577820), (5, 5262256), (8, 3288910), (10, 2631128), (16, 1644455), (20, 1315564), (40, 657782), (80, 328891)]