A004394 - cp's OEIS frontend

A004394 Superabundant [or super-abundant] numbers: n such that sigma(n)/n > sigma(m)/m for all m < n, sigma(n) being A000203(n), the sum of the divisors of n.

n	a(n)
1	1
2	2
3	4
4	6
5	12
6	24
7	36
8	48
9	60
10	120
11	180
12	240
13	360
14	720
15	840
16	1260
17	1680
18	2520
19	5040
20	10080
21	15120
22	25200
23	27720
24	55440
25	110880
26	166320
27	277200
28	332640
29	554400
30	665280
31	720720
32	1441440
33	2162160
34	3603600
35	4324320
36	7207200
37	8648640
38	10810800
39	21621600

[1, 2, 4, 6, 12, 24, 36, 48, 60, 120, 180, 240, 360, 720, 840, 1260, 1680, 2520, 5040, 10080, 15120, 25200, 27720, 55440, 110880, 166320, 277200, 332640, 554400, 665280, 720720, 1441440, 2162160, 3603600, 4324320, 7207200, 8648640, 10810800, 21621600]

cp's OEIS Frontend

A004394 Superabundant [or super-abundant] numbers: n such that sigma(n)/n > sigma(m)/m for all m < n, sigma(n) being A000203(n), the sum of the divisors of n.

Table of values

List of values