Return of Reckoning

Hi,
I did 7 times the CnT dungeon to get the sentinel ring but my influence stopped at 36940 / 37000. How is it possible having a non-round number while killing the bosses gives 2k influence ? I'm sure i've killed all the bosses each times.
Is there a way to get the remaining influence amount without doing the dungeon again ? What gives influences here except the bosses ?
Thank you for your help

from every lord u got x2 influence , u basicly fill 2 influence bars not 1 as it is in gundaband and bastion stairs. maby something is changed byt i was also confused when first started c/t.
u can get x2 weapons and 2 sentinel rings

At least its easy now, when a lot of us ran C/T when they first added it several years ago, it required 13 runs to get enough influence to get the ring.