40819280

素因数分解:

$2^4\times 5^1\times {\mathrm{510241}}^1$

素因数の和:510254

約数の個数: 20

約数和(自身を含む): 94905012

約数和(自身を除く): 54085732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 510241, 1020482, 2040964, 2551205, 4081928, 5102410, 8163856, 10204820, 20409640, 40819280]

約数ペア:

[(1, 40819280), (2, 20409640), (4, 10204820), (5, 8163856), (8, 5102410), (10, 4081928), (16, 2551205), (20, 2040964), (40, 1020482), (80, 510241)]