The sum of two natural numbers A and B is 80, and the difference between the least common multiple and the greatest common factor of these two numbers is also 80. What is the product of multiplying these two numbers?
甲、乙两个自然数的和是80，这两个数的最小公倍数与最大公因数的差也是80，这两个数相乘的积是多少．
<gadget id="calculator">2 * 1</gadget>
<output>2</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<gadget id="calculator">16 * 3</gadget>
<output>48</output>

<gadget id="calculator">32 * 48</gadget>
<output>1_536</output>

<result>1_536</result>