Divided into 2 lines: 16÷2=8, divisible, 8 sheets per line.

It is divided into 4 lines: 16÷4=4, which is divisible, with 4 sheets in each line.

Divided into 8 lines: 16÷8=2, divisible, 2 sheets per line.

Divided into 16 lines: 16÷ 16= 1, and each line can be divided into 1 sheet.

There are five kinds.