From the Hyper-V Technet forums a question came about on how to get the number of processors for a non-active VM. You can see the varying answers here.
Thinking of the PowerShell options available with Hyper-V and SCVMM this is what came to mind for me using the Get-VMSummary and state attributes like EnabledState and Status.
With the Hyper-V PowerShell cmdlets installed (more info here http://bit.ly/hD38j2) you can use the following:
Get-VMSummary -server HOST1, HOST2, HOST3 | ? {$_.EnabledState -eq "Stopped"} | ft VMElementName, CPUCount, EnabledState
If you want to export it to a CSV you can do the following
Get-VMSummary -server HOST1, HOST2, HOST3 | ? {$_.EnabledState -eq "Stopped"} | Select-Object VMElementName, CPUCount, EnabledState | Export-CSV "C:\info.csv" -notypeinformation
From the SCVMM PowerShell command console you could do the following:
Get-VM | ? {$_.status -eq "PowerOff"} | ft name, cpucount, status -a
If you want to export to CSV from SCVMM prompt
Get-VM | ? {$_.status -eq "PowerOff"} | select-object name, cpucount, status | export-csv "c:\info.csv" –notypeinformation
VirtuallyAware 