81514960

素因数分解:

$2^4\times 5^1\times {\mathrm{1018937}}^1$

素因数の和:1018950

約数の個数: 20

約数和(自身を含む): 189522468

約数和(自身を除く): 108007508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1018937, 2037874, 4075748, 5094685, 8151496, 10189370, 16302992, 20378740, 40757480, 81514960]

約数ペア:

[(1, 81514960), (2, 40757480), (4, 20378740), (5, 16302992), (8, 10189370), (10, 8151496), (16, 5094685), (20, 4075748), (40, 2037874), (80, 1018937)]