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µù¥U¤é: 2002-09-19
µoªí¼Æ: 4


 ½Ð±Ð®]¤å¥ý¦Ñ®v¤@­Ó°ÝÃD!

®]¦Ñ®v±z¦n:
®Ú¾Úºâ³N°ò¥»©w²z(Fundamental theorm of arithmetic)
¥ô¦ó¤j©ó1ªº¦ÛµM¼Æ³£¥i¤À¸Ñ¦¨°ß¤@ªº½è¦]¼Æ­¼¿n.

N=(p1^n1)*(p2^n2)**....**(pn^nn)
p1,p2,,,,pn¬°½è¼Æ,n1,n2,,,nn¤j©ó0.

¨Ò¦p12=2*2*3=(2^2)*(3^1)
«h12ªº¦]¼Æ­Ó¼Æ¦@¦³(1+2)*(1+1)=6(­Ó)
12©Ò¦³ªº¦]¼Æªº¦X(¥]§t1)=(2^0+2^1+2^2)*(3^0+3^1)
=(1+2+4)*(1+3)
=(7)*(4)
=28
½Ð°Ý¥H¤W2­Ó¤½¦¡¬O«ç»ò¨Óªº,¨ºùئ³³o¤è­±ªº°Ñ¦Ò
¸ê ®Æ? ÁÂÁÂ!!

 2002-10-30 23:27­Ó¤H¸ê®Æ
³X«È








 Re: ½Ð±Ð®]¤å¥ý¦Ñ®v¤@­Ó°ÝÃD!

N­Y¥i¤À¸Ñ¦¨¥t¤@ºØ½è¦]¼Æ­¼¿n

N=(q1^r1)*(q2^r2)**....**(qm^rm)
q1,q2,,,,qm¬°º¥¤j¤§¬Û²§½è¼Æ,r1,r2,,,rm¤j©ó0.(ª`·N¡Gri­Y¥i¥Hµ¥¨ì0¡An´N¤£¬O¥i¥H°ß¤@ªí¥Ü)
­Y¦s¦bqi¤£µ¥©óp1, p2,....,pn ¤§¤@¡A«hqi¤£¬Onªº¦]¼Æ¡A¥Ù¬Þ¡C
¦]¦¹p1=q1, p2=q2, ....
­Y¦s¦b¬Y¤@¶µpi^ni¤£µ¥©óqi^ri, §Yni¤£µ¥©óri, ¤£§«³]
ni¤j©óri,±Nn°£¥Hpi^ri, «hs=n/pi^ri=(p1^n1)*(p2^n2)....
..pi^(ni-ri)....(pn^nn)=(p1^r1)*(p2^r2)....p(i-1)^.r(i-1)p(i+1)^.r(i+1)....(pn^nn), s¬J¦³¦]¼Æpi¤S¨S¦³¡A¥Ù¬Þ¡C

¹ï¨C¤@­Ó½è¦]¼Æpi^ni¦Ó¨¥¡Anªº¦]¼Æ¥i¨úpiªº0, 1,2,..ni¦¸¤è¡A¬G¦³(1+ni)ºØ¨úªk¡A©Ò¥Hnªº¦]¼Æ¦@¦³
(1+n1)(1+n2)(1+n3)...(1+nn)­Ó¡C(¥]¬A1¤Î¥»¨­)
®]¤å¥ý


 2002-11-02 16:40
³X«È








 Re: ½Ð±Ð®]¤å¥ý¦Ñ®v¤@­Ó°ÝÃD!

¥Î§ó²³æªº¤èªk»¡´N¬O
12= 2 ªº¥­¤è­¼¥H 3 ªº¤@¦¸¤è
¤]´N¬O»¡
¦³¨âºØ½è¦]¼Æ 2 ©M 3
¦Ó¥B 12 ªº¦]¼Æ¥i¯à¬O 2 ªº¹s¨ì¤G¦¸¤è­¼¥H 3 ªº¹s¨ì¤@¦¸¤è
©Ò¥H¦@¦³ (3 * 2 )= 6­Ó¦]¼Æ
§Y 1,2,3,4,6,12

 2002-11-13 19:16


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