last term

[Richard Guy]

Should A002952 have more terms?  E.g. 1080150
is a member.  Perhaps noone has yet done an
exhaustive search as far as that?  Is this such
a hard job with modern technology?  Perhaps
A002952 should have an example?  E.g. 114
has unitary divisors 1, (2,57), (3,38) and
(6,19), apart from 114 itself.  Their sum
is 126, whose unitary divisors < 126 are
1, (2,63), (7,18), (9,14) whose sum is 114.

On Wed, 23 Nov 2005, kohmoto wrote:

>    Hi, Seqfans.
>
>    My friend Derek Ball has calculated the last known term of
> A002952.
>
>    It is the following pair.
>        10302410313739226863757491120892279744675729174054109150628438647147973647406634217346332441570409404516501915143377575711954847238899216297642876724841369411480856779697221106668859504629457021217910561604472360718792521955962254221538368328657116523015472660560823756937659664997398300090866078604217462176696900930224703667087003220705280=2^18*3*5*7^7*11^2*13*19^3*31*37*41*61*67*109*113*139*911*1607*6427*12853*296904299*846177252149*4822364160002849*4080574853773031339313205207*34557826596949542686806800653233930307167744843*43371808921670528238412238496440666468158633051078151884443257974790358423147580833686007952662551954978838651242320964581586254765354178358465611564073434242259257179663207263862143
> 10302410313751404239177506746307711818540826905693514662639228128435884689427652803437511776730621352477204837099111714955963627921427141651568164399039820609452599954344009412315891683384889956655030997174659275919318065965931714350485134489491164752663886972907403110699273011746020881400860669679177125072806128827920172702587236779294720=2^18*3*5*7^7*11^2*13*19^3*31*37*41*61*67*109*113*139*911*1607*6427*12853*296904299*575425520171589171333546707422660076935911666081588728176272529712586631153866829681263197031263862143*43371808921670528238412238496440666468158633051078151884443257974790358423147579682834967610164358143540513912672338200844982334623913032340738022580086082390131246062682593824879999
>
>
>
>    341 digits.
>
>
>    Yasutoshi
>
>