\[\boxed{\mathbf{446.}}\]
\[20 \cdot 4 = 80\]
\[30 \cdot 2 = 60\]
\[50 \cdot 2 = 100\]
\[2 \cdot 20 = 40\]
\[3 \cdot 30 = 90\]
\[4 \cdot 20 = 80\]
\[200 \cdot 3 = 600\]
\[300 \cdot 2 = 600\]
\[500 \cdot 2 = 1000\]
\[2 \cdot 300 = 600\]
\[4 \cdot 200 = 800\]
\[2 \cdot 500 = 1000\]