256421088

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:438

約数の個数: 288

約数和(自身を含む): 940972032

約数和(自身を除く): 684550944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 31, 32, 33, 36, 42, 44, 48, 56, 62, 63, 66, 72, 77, 84, 88, 93, 96, 99, 112, 124, 126, 132, 144, 154, 168, 176, 186, 198, 217, 224, 231, 248, 252, 264, 279, 288, 308, 336, 341, 352, 372, 373, 396, 434, 462, 496, 504, 528, 558, 616, 651, 672, 682, 693, 744, 746, 792, 868, 924, 992, 1008, 1023, 1056, 1116, 1119, 1232, 1302, 1364, 1386, 1488, 1492, 1584, 1736, 1848, 1953, 2016, 2046, 2232, 2238, 2387, 2464, 2604, 2611, 2728, 2772, 2976, 2984, 3069, 3168, 3357, 3472, 3696, 3906, 4092, 4103, 4464, 4476, 4774, 5208, 5222, 5456, 5544, 5968, 6138, 6714, 6944, 7161, 7392, 7812, 7833, 8184, 8206, 8928, 8952, 9548, 10416, 10444, 10912, 11088, 11563, 11936, 12276, 12309, 13428, 14322, 15624, 15666, 16368, 16412, 17904, 19096, 20832, 20888, 21483, 22176, 23126, 23499, 24552, 24618, 26856, 28644, 28721, 31248, 31332, 32736, 32824, 34689, 35808, 36927, 38192, 41776, 42966, 46252, 46998, 49104, 49236, 53712, 57288, 57442, 62496, 62664, 65648, 69378, 73854, 76384, 80941, 83552, 85932, 86163, 92504, 93996, 98208, 98472, 104067, 107424, 114576, 114884, 125328, 127193, 131296, 138756, 147708, 161882, 171864, 172326, 185008, 187992, 196944, 208134, 229152, 229768, 242823, 250656, 254386, 258489, 277512, 295416, 323764, 343728, 344652, 370016, 375984, 381579, 393888, 416268, 459536, 485646, 508772, 516978, 555024, 590832, 647528, 687456, 689304, 728469, 751968, 763158, 832536, 890351, 919072, 971292, 1017544, 1033956, 1110048, 1144737, 1181664, 1295056, 1378608, 1456938, 1526316, 1665072, 1780702, 1942584, 2035088, 2067912, 2289474, 2590112, 2671053, 2757216, 2913876, 3052632, 3330144, 3561404, 3885168, 4070176, 4135824, 4578948, 5342106, 5827752, 6105264, 7122808, 7770336, 8013159, 8271648, 9157896, 10684212, 11655504, 12210528, 14245616, 16026318, 18315792, 21368424, 23311008, 28491232, 32052636, 36631584, 42736848, 64105272, 85473696, 128210544, 256421088]

約数ペア:

[(1, 256421088), (2, 128210544), (3, 85473696), (4, 64105272), (6, 42736848), (7, 36631584), (8, 32052636), (9, 28491232), (11, 23311008), (12, 21368424), (14, 18315792), (16, 16026318), (18, 14245616), (21, 12210528), (22, 11655504), (24, 10684212), (28, 9157896), (31, 8271648), (32, 8013159), (33, 7770336), (36, 7122808), (42, 6105264), (44, 5827752), (48, 5342106), (56, 4578948), (62, 4135824), (63, 4070176), (66, 3885168), (72, 3561404), (77, 3330144), (84, 3052632), (88, 2913876), (93, 2757216), (96, 2671053), (99, 2590112), (112, 2289474), (124, 2067912), (126, 2035088), (132, 1942584), (144, 1780702), (154, 1665072), (168, 1526316), (176, 1456938), (186, 1378608), (198, 1295056), (217, 1181664), (224, 1144737), (231, 1110048), (248, 1033956), (252, 1017544), (264, 971292), (279, 919072), (288, 890351), (308, 832536), (336, 763158), (341, 751968), (352, 728469), (372, 689304), (373, 687456), (396, 647528), (434, 590832), (462, 555024), (496, 516978), (504, 508772), (528, 485646), (558, 459536), (616, 416268), (651, 393888), (672, 381579), (682, 375984), (693, 370016), (744, 344652), (746, 343728), (792, 323764), (868, 295416), (924, 277512), (992, 258489), (1008, 254386), (1023, 250656), (1056, 242823), (1116, 229768), (1119, 229152), (1232, 208134), (1302, 196944), (1364, 187992), (1386, 185008), (1488, 172326), (1492, 171864), (1584, 161882), (1736, 147708), (1848, 138756), (1953, 131296), (2016, 127193), (2046, 125328), (2232, 114884), (2238, 114576), (2387, 107424), (2464, 104067), (2604, 98472), (2611, 98208), (2728, 93996), (2772, 92504), (2976, 86163), (2984, 85932), (3069, 83552), (3168, 80941), (3357, 76384), (3472, 73854), (3696, 69378), (3906, 65648), (4092, 62664), (4103, 62496), (4464, 57442), (4476, 57288), (4774, 53712), (5208, 49236), (5222, 49104), (5456, 46998), (5544, 46252), (5968, 42966), (6138, 41776), (6714, 38192), (6944, 36927), (7161, 35808), (7392, 34689), (7812, 32824), (7833, 32736), (8184, 31332), (8206, 31248), (8928, 28721), (8952, 28644), (9548, 26856), (10416, 24618), (10444, 24552), (10912, 23499), (11088, 23126), (11563, 22176), (11936, 21483), (12276, 20888), (12309, 20832), (13428, 19096), (14322, 17904), (15624, 16412), (15666, 16368)]