There are an infinite number of highly composite numbers, and the first few are 1, 2, 4, 6, 12, 24, 36, 48, 60, 120, 180, 240, 360, 720, 840, 1260, 1680, 2520, 5040, ... (OEIS A002182). The corresponding numbers of divisors are 1, 2, 3, 4, 6, 8, 9, 10, 12, 16, 18, 20, 24, 30, 32, ... (OEIS A002183).
Clackamas County Population 2018 Clackamas County's estimated population is 408,062 with a growth rate of 1.72% in the past year according to the most recent United States census data. Clackamas County is the 3rd largest county in Oregon.
Skip to Main Content. Clackamas County, in north central Oregon, is one of the four counties that make up the Portland, Oregon, metropolitan area. It is bounded by Multnomah County to the north, Wasco County to the east, Marion County to the south, and Yamhill and Washington counties to the west.