元となった辞書の項目
sociable number
noun
(number
theory)
Any
of
a
sequence
of
numbers
having
the
property
that
the
sum
of
the
divisors
of
each,
excluding
itself,
is
equal
to
the
next
number
in
the
sequence;
in
the
case
of
the
last
number
of
the
sequence,
the
sum
of
the
divisors,
excluding
that
number,
is
equal
to
the
first
number
of
the
sequence.
意味（1）
(number
theory)
Any
of
a
sequence
of
numbers
having
the
property
that
the
sum
of
the
divisors
of
each,
excluding
itself,
is
equal
to
the
next
number
in
the
sequence;
in
the
case
of
the
last
number
of
the
sequence,
the
sum
of
the
divisors,
excluding
that
number,
is
equal
to
the
first
number
of
the
sequence.
