49731280

素因数分解:

$2^4\times 5^1\times {\mathrm{621641}}^1$

素因数の和:621654

約数の個数: 20

約数和(自身を含む): 115625412

約数和(自身を除く): 65894132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 621641, 1243282, 2486564, 3108205, 4973128, 6216410, 9946256, 12432820, 24865640, 49731280]

約数ペア:

[(1, 49731280), (2, 24865640), (4, 12432820), (5, 9946256), (8, 6216410), (10, 4973128), (16, 3108205), (20, 2486564), (40, 1243282), (80, 621641)]