Factorials!

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17!=355 687428 096000 = 2 ^ 15 x 3 ^ 6 x 5 ^ 3 x 7 ^ 2 x 11 x 13 x 17

18! = 6402373705728000 = 2^16 * 3^8 * 5^3 * 7^2 * 11 * 13 * 17

19!=121645 100408 832000 = 2 ^ 16 x 3 ^ 8 x 5 ^ 3 x 7 ^ 2 x 11 x 13 x 17 x 19

Number of divisors: 29376

This is going to grow faster and larger than the Fibonacci numbers thread...

20! = 2432902008176640000 = 2^18 * 3^8 * 5^4 * 7^2 * 11 * 13 * 17 * 19


ooh, there was a fibonacci thread? I'm sorry I missed that!

21!=51 090942 171709 440000 = 2 ^ 18 x 3 ^ 9 x 5 ^ 4 x 7 ^ 3 x 11 x 13 x 17 x 19

Number of divisors: 60800


Yeah, there is a Fibonacci numbers thread. We got up F1004 which has 203 digits.
http://www.wrongplanet.net/postt67075.html

22! = 1124000727777607680000 = 2^19 * 3^9 * 5^4 * 7^3 * 11^2 * 13 * 17 * 19

23!=25852 016738 884976 640000 = 2 ^ 19 x 3 ^ 9 x 5 ^ 4 x 7 ^ 3 x 11 ^ 2 x 13 x
17 x 19 x 23

Number of divisors: 192000

24! = 620448401733239439360000 = 2^22 * 3^10 * 5^4 * 7^3 * 11^2 * 13 * 17 * 19 * 23

25! = 15511210043330985984000000 = 2^22 * 3^10 * 5^6 * 7^3 * 11^2 * 13 * 17 * 19 * 23

it is approximately 10^25, which is interesting

26! = 403291461126605635584000000 = 2^23 * 3^10 * 5^6 * 7^3 * 11^2 * 13^2 * 17 * 19 * 23

27!=10888 869450 418352 160768 000000 = 2 ^ 23 x 3 ^ 13 x 5 ^ 6 x 7 ^ 3 x 11 ^ 2
x 13 ^ 2 x 17 x 19 x 23

28! = 304 888 344 611 713 860 501 504 000 000 = 2^25 * 3^13 * 5^6 * 7^4 * 11^2 * 13^2 * 17 * 19 * 23

29!=8 841761 993739 701954 543616 000000 = 2 ^ 25 x 3 ^ 13 x 5 ^ 6 x 7 ^ 4 x 11 ^
2 x 13 ^ 2 x 17 x 19 x 23 x 29

30! = 265 252 859 812 191 058 636 308 480 000 000 = 2^26 * 3^14 * 5^7 * 7^4 * 11^2 * 13^2 * 17 * 19 * 23 * 29

31!=8222 838654 177922 817725 562880 000000 = 2 ^ 26 x 3 ^ 14 x 5 ^ 7 x 7 ^ 4 x
11 ^ 2 x 13 ^ 2 x 17 x 19 x 23 x 29 x 31

32! = 263 130 836 933 693 530 167 218 012 160 000 000 = 2^31 * 3^14 * 5^7 * 7^4 * 11^2 * 13^2 * 17 * 19 * 23 * 29 *31