Mamamoo - Melting: 2,266,714 (12 songs)
101 Trainees - 5 Concepts + Pick Me: 2,249,271 (6 songs)
Lee Hi - Seoulite: 2,131,485 (12 songs, I'm Different not included)
GFRIEND - Snowflake: 1,428,948 (6 songs)
Taeyeon - Rain: 980,526 (2 songs)
TWICE - Page Two: 598,975 (6 songs)
Red Velvet - The Velvet: 498,880 (5 songs, no remixes included)
Jung Eunji - Dream: 410,008 (5 songs)
Average per Song:
Taeyeon - Rain: 490,263
101 Trainees - 5 Concepts + Pick Me: 374,879
GFRIEND - Snowflake: 238,158
Mamamoo - Melting: 188,893
Lee Hi - Seoulite: 177,624
Twice - Page Two: 99,829
Red Velvet - The Velvet: 99,776
Jung Eunji - Dream: 82,002
*Please take these numbers with grain of salt because I did the additions very quickly and I might have missed a week or so for lower ranking songs.
**4Minute and AOA Cream didn't crack 400k from the looks of it.
***Remember, no MVs produced or money given to the 101 girls...
****YES SOME ONLY HAD A FEW WEEKS~! And yes, mini albums and single albums have an advantage so compare apples to apples, the numbers are just here for you. I know... relax, its just for reference
LET ME KNOW IF I MISSED ANYTHING!
Also FYI AKMU did 1,131,951 first week with 6 songs, that's a 188,659 average in 1 week.