Xiao Zhou has a 26-meter-long fence, and uses all these fences to form a rectangular garden, so that the length of each side of the garden is an integer number of meters. How many different ways does he have to surround the garden.
小周有26米长的篱笆，用全部的这些篱笆围成一个矩形的花园，使得花园的每个边长都是整数米．他有多少种不同围花园的方法．
<result>6</result>