In this study, flow factors are evaluated in terms of kurtosis using random rough surface generated numerically. As h/$sigma$become large ø$sub$x/, ø$sub$y/, ø$sub$fp/, approach to 1 and ø$sub$s/, ø$sub$fs/ to 0 asymptotically regardless of kurtosis. ø$sub$x/, ø$sub$y/, ø$sub$fp/ increase with increasing kurtosis in the mixed lubrication regime. ø$sub$s/, ø$sub$fs/ is associated with an additional flow transport due to the combined effect of sliding and roughness. As h/$sigma$ decreases ø$sub$s/, ø$sub$fs/ increase up to a certain point, and then decrease toward zero. This behavior can be attributed to the increasing number of contacts in the mixed lubrication regime. ø$sub$x/ in the presence of elastic deformation on the surface is larger than ø$sub$x/ in the absence of it because local film thickness(h$sub$T/) increases by elastic deformation.