85707920

素因数分解:

$2^4\times 5^1\times {\mathrm{1071349}}^1$

素因数の和:1071362

約数の個数: 20

約数和(自身を含む): 199271100

約数和(自身を除く): 113563180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1071349, 2142698, 4285396, 5356745, 8570792, 10713490, 17141584, 21426980, 42853960, 85707920]

約数ペア:

[(1, 85707920), (2, 42853960), (4, 21426980), (5, 17141584), (8, 10713490), (10, 8570792), (16, 5356745), (20, 4285396), (40, 2142698), (80, 1071349)]