I have uploaded 2 files both are about the same age on Tardigrade.

File number one: Size 33.30 GB has 4675 piece by today. Link

File number 2: Size 6.22GB has 3121 pieces as of today. Link

Why is there such a difference in the number of pieces? I would expect that a file that is almost 6 times the size would also result in almost 6 times the number of pieces. Why is it only factor 1.5?