A322376 - cp's OEIS frontend

A322376 Positive integers k that are the sum of divisors of some positive integer but there exists no divisor d where 1 < d, k/d of k such that d and k/d have this property.

n	a(n)
1	1
2	3
3	4
4	6
5	7
6	8
7	13
8	14
9	15
10	20
11	30
12	31
13	38
14	40
15	44
16	57
17	62
18	63
19	68
20	74
21	102
22	110
23	121
24	127
25	133
26	138
27	150
28	158
29	164
30	174
31	183
32	194
33	198
34	200
35	212
36	230
37	242
38	255
39	258
40	278
41	282
42	284
43	307
44	314
45	318
46	332
47	338
48	348
49	350
50	354
51	368
52	374
53	380
54	398
55	402
56	410
57	422
58	458

[1, 3, 4, 6, 7, 8, 13, 14, 15, 20, 30, 31, 38, 40, 44, 57, 62, 63, 68, 74, 102, 110, 121, 127, 133, 138, 150, 158, 164, 174, 183, 194, 198, 200, 212, 230, 242, 255, 258, 278, 282, 284, 307, 314, 318, 332, 338, 348, 350, 354, 368, 374, 380, 398, 402, 410, 422, 458]

cp's OEIS Frontend

A322376 Positive integers k that are the sum of divisors of some positive integer but there exists no divisor d where 1 < d, k/d of k such that d and k/d have this property.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	6
5	7
6	8
7	13
8	14
9	15
10	20
11	30
12	31
13	38
14	40
15	44
16	57
17	62
18	63
19	68
20	74
21	102
22	110
23	121
24	127
25	133
26	138
27	150
28	158
29	164
30	174
31	183
32	194
33	198
34	200
35	212
36	230
37	242
38	255
39	258
40	278
41	282
42	284
43	307
44	314
45	318
46	332
47	338
48	348
49	350
50	354
51	368
52	374
53	380
54	398
55	402
56	410
57	422
58	458

n	a(n)
1	1
2	3
3	4
4	6
5	7
6	8
7	13
8	14
9	15
10	20
11	30
12	31
13	38
14	40
15	44
16	57
17	62
18	63
19	68
20	74
21	102
22	110
23	121
24	127
25	133
26	138
27	150
28	158
29	164
30	174
31	183
32	194
33	198
34	200
35	212
36	230
37	242
38	255
39	258
40	278
41	282
42	284
43	307
44	314
45	318
46	332
47	338
48	348
49	350
50	354
51	368
52	374
53	380
54	398
55	402
56	410
57	422
58	458

n	a(n)
1	1
2	3
3	4
4	6
5	7
6	8
7	13
8	14
9	15
10	20
11	30
12	31
13	38
14	40
15	44
16	57
17	62
18	63
19	68
20	74
21	102
22	110
23	121
24	127
25	133
26	138
27	150
28	158
29	164
30	174
31	183
32	194
33	198
34	200
35	212
36	230
37	242
38	255
39	258
40	278
41	282
42	284
43	307
44	314
45	318
46	332
47	338
48	348
49	350
50	354
51	368
52	374
53	380
54	398
55	402
56	410
57	422
58	458