[inimino]

> Electoral votes = senators + congressmen

Yes.

> Does popular vote mean all votes from US tallied together as a whole

Yes.

The popular vote means the vote of the whole people nationally, exactly as if state boundaries did not exist.

The electoral college vote is weighted in a way that relates to the population of each state, but which favors smaller states. The relationship between the popular vote and the electoral college vote is further complicated by the winner-take-all system, and by the fact that voter turnout in a state does not effect the number of electoral college votes.