sql server - SQL Count/sum multiple columns -

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i want use count/ sum multiple fields in single query sample data , desired result listed below: 

memid  claimnum  itemid paidamt  123    1234      4      5 123    2309      4      5  123    1209      4      5  123    1209      8      2.2 123    1210      8      2.2

desired result 

memid  count(claimnum) count(itemid) sum(paidamt)  123    3               3             15  123    2               2             4.4

it looks want group both memid , itemid:

select memid, count(claimnum), count(itemid), sum(paidamt)    the_table  group memid, itemid

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