The product of all solutions of the equation $\mathrm { e } ^ { 5 \left( \log _ { \mathrm { e } } x \right) ^ { 2 } + 3 } = x ^ { 8 } , x > 0$, is:\\ (1) $e ^ { 8 / 5 }$\\ (2) $e ^ { 6 / 5 }$\\ (3) $e ^ { 2 }$\\ (4) e