312939978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 771047424

約数和(自身を除く): 458107446

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 31, 34, 39, 46, 51, 62, 69, 78, 93, 102, 138, 186, 221, 299, 331, 391, 403, 442, 527, 598, 662, 663, 713, 782, 806, 897, 993, 1054, 1173, 1209, 1326, 1426, 1581, 1794, 1986, 2139, 2346, 2418, 3162, 4278, 4303, 5083, 5627, 6851, 7613, 8606, 9269, 10166, 10261, 11254, 12121, 12909, 13702, 15226, 15249, 16881, 18538, 20522, 20553, 22839, 24242, 25818, 27807, 30498, 30783, 33762, 36363, 41106, 45678, 55614, 61566, 72726, 73151, 98969, 129421, 133393, 146302, 157573, 174437, 197938, 219453, 236003, 258842, 266786, 296907, 315146, 348874, 388263, 400179, 438906, 472006, 472719, 523311, 593814, 708009, 776526, 800358, 945438, 1046622, 1416018, 1682473, 2267681, 3068039, 3364946, 4012051, 4535362, 5047419, 6136078, 6803043, 8024102, 9204117, 10094838, 12036153, 13606086, 18408234, 24072306, 52156663, 104313326, 156469989, 312939978]

約数ペア:

[(1, 312939978), (2, 156469989), (3, 104313326), (6, 52156663), (13, 24072306), (17, 18408234), (23, 13606086), (26, 12036153), (31, 10094838), (34, 9204117), (39, 8024102), (46, 6803043), (51, 6136078), (62, 5047419), (69, 4535362), (78, 4012051), (93, 3364946), (102, 3068039), (138, 2267681), (186, 1682473), (221, 1416018), (299, 1046622), (331, 945438), (391, 800358), (403, 776526), (442, 708009), (527, 593814), (598, 523311), (662, 472719), (663, 472006), (713, 438906), (782, 400179), (806, 388263), (897, 348874), (993, 315146), (1054, 296907), (1173, 266786), (1209, 258842), (1326, 236003), (1426, 219453), (1581, 197938), (1794, 174437), (1986, 157573), (2139, 146302), (2346, 133393), (2418, 129421), (3162, 98969), (4278, 73151), (4303, 72726), (5083, 61566), (5627, 55614), (6851, 45678), (7613, 41106), (8606, 36363), (9269, 33762), (10166, 30783), (10261, 30498), (11254, 27807), (12121, 25818), (12909, 24242), (13702, 22839), (15226, 20553), (15249, 20522), (16881, 18538)]