256413276

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:582

約数の個数: 180

約数和(自身を含む): 806452416

約数和(自身を除く): 550039140

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 49, 54, 62, 63, 81, 84, 93, 98, 108, 124, 126, 147, 162, 186, 189, 196, 217, 252, 279, 294, 324, 372, 378, 434, 441, 521, 558, 567, 588, 651, 756, 837, 868, 882, 1042, 1116, 1134, 1302, 1323, 1519, 1563, 1674, 1764, 1953, 2084, 2268, 2511, 2604, 2646, 3038, 3126, 3348, 3647, 3906, 3969, 4557, 4689, 5022, 5292, 5859, 6076, 6252, 7294, 7812, 7938, 9114, 9378, 10044, 10941, 11718, 13671, 14067, 14588, 15876, 16151, 17577, 18228, 18756, 21882, 23436, 25529, 27342, 28134, 32302, 32823, 35154, 41013, 42201, 43764, 48453, 51058, 54684, 56268, 64604, 65646, 70308, 76587, 82026, 84402, 96906, 98469, 102116, 113057, 123039, 131292, 145359, 153174, 164052, 168804, 193812, 196938, 226114, 229761, 246078, 290718, 295407, 306348, 339171, 393876, 436077, 452228, 459522, 492156, 581436, 590814, 678342, 689283, 791399, 872154, 919044, 1017513, 1181628, 1308231, 1356684, 1378566, 1582798, 1744308, 2035026, 2067849, 2374197, 2616462, 2757132, 3052539, 3165596, 4070052, 4135698, 4748394, 5232924, 6105078, 7122591, 8271396, 9157617, 9496788, 12210156, 14245182, 18315234, 21367773, 28490364, 36630468, 42735546, 64103319, 85471092, 128206638, 256413276]

約数ペア:

[(1, 256413276), (2, 128206638), (3, 85471092), (4, 64103319), (6, 42735546), (7, 36630468), (9, 28490364), (12, 21367773), (14, 18315234), (18, 14245182), (21, 12210156), (27, 9496788), (28, 9157617), (31, 8271396), (36, 7122591), (42, 6105078), (49, 5232924), (54, 4748394), (62, 4135698), (63, 4070052), (81, 3165596), (84, 3052539), (93, 2757132), (98, 2616462), (108, 2374197), (124, 2067849), (126, 2035026), (147, 1744308), (162, 1582798), (186, 1378566), (189, 1356684), (196, 1308231), (217, 1181628), (252, 1017513), (279, 919044), (294, 872154), (324, 791399), (372, 689283), (378, 678342), (434, 590814), (441, 581436), (521, 492156), (558, 459522), (567, 452228), (588, 436077), (651, 393876), (756, 339171), (837, 306348), (868, 295407), (882, 290718), (1042, 246078), (1116, 229761), (1134, 226114), (1302, 196938), (1323, 193812), (1519, 168804), (1563, 164052), (1674, 153174), (1764, 145359), (1953, 131292), (2084, 123039), (2268, 113057), (2511, 102116), (2604, 98469), (2646, 96906), (3038, 84402), (3126, 82026), (3348, 76587), (3647, 70308), (3906, 65646), (3969, 64604), (4557, 56268), (4689, 54684), (5022, 51058), (5292, 48453), (5859, 43764), (6076, 42201), (6252, 41013), (7294, 35154), (7812, 32823), (7938, 32302), (9114, 28134), (9378, 27342), (10044, 25529), (10941, 23436), (11718, 21882), (13671, 18756), (14067, 18228), (14588, 17577), (15876, 16151)]