Before the "Six Day" Children's Day, the representatives of primary school students in the city built a 2m-long, 1.6m-high, and 8cm-thick wish wall in the center of the square with square plastic building blocks with a side length of 4cm. How many blocks are used for this wall? Building Blocks?
"六一"儿童节前，全市的小学生代表用棱长4cm的正方体塑料拼插积木在广场中央搭起了一面长2m、高1.6m、厚8cm的心愿墙，这面墙一共用了多少块积木？
<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">1.6 * 100</gadget>
<output>160</output>

<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">8 / 64</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">200 * 160 * (1/8)</gadget>
<output>4_000</output>

<result>4_000</result>