256405248

素因数分解:

$2^8\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:251

約数の個数: 216

約数和(自身を含む): 823944576

約数和(自身を除く): 567539328

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 67, 72, 88, 96, 99, 128, 132, 134, 144, 151, 176, 192, 198, 201, 256, 264, 268, 288, 302, 352, 384, 396, 402, 453, 528, 536, 576, 603, 604, 704, 737, 768, 792, 804, 906, 1056, 1072, 1152, 1206, 1208, 1359, 1408, 1474, 1584, 1608, 1661, 1812, 2112, 2144, 2211, 2304, 2412, 2416, 2718, 2816, 2948, 3168, 3216, 3322, 3624, 4224, 4288, 4422, 4824, 4832, 4983, 5436, 5896, 6336, 6432, 6633, 6644, 7248, 8448, 8576, 8844, 9648, 9664, 9966, 10117, 10872, 11792, 12672, 12864, 13266, 13288, 14496, 14949, 17152, 17688, 19296, 19328, 19932, 20234, 21744, 23584, 25344, 25728, 26532, 26576, 28992, 29898, 30351, 35376, 38592, 38656, 39864, 40468, 43488, 47168, 51456, 53064, 53152, 57984, 59796, 60702, 70752, 77184, 79728, 80936, 86976, 91053, 94336, 106128, 106304, 111287, 115968, 119592, 121404, 141504, 154368, 159456, 161872, 173952, 182106, 188672, 212256, 212608, 222574, 239184, 242808, 283008, 318912, 323744, 333861, 347904, 364212, 424512, 425216, 445148, 478368, 485616, 566016, 637824, 647488, 667722, 728424, 849024, 890296, 956736, 971232, 1001583, 1275648, 1294976, 1335444, 1456848, 1698048, 1780592, 1913472, 1942464, 2003166, 2589952, 2670888, 2913696, 3561184, 3826944, 3884928, 4006332, 5341776, 5827392, 7122368, 7769856, 8012664, 10683552, 11654784, 14244736, 16025328, 21367104, 23309568, 28489472, 32050656, 42734208, 64101312, 85468416, 128202624, 256405248]

約数ペア:

[(1, 256405248), (2, 128202624), (3, 85468416), (4, 64101312), (6, 42734208), (8, 32050656), (9, 28489472), (11, 23309568), (12, 21367104), (16, 16025328), (18, 14244736), (22, 11654784), (24, 10683552), (32, 8012664), (33, 7769856), (36, 7122368), (44, 5827392), (48, 5341776), (64, 4006332), (66, 3884928), (67, 3826944), (72, 3561184), (88, 2913696), (96, 2670888), (99, 2589952), (128, 2003166), (132, 1942464), (134, 1913472), (144, 1780592), (151, 1698048), (176, 1456848), (192, 1335444), (198, 1294976), (201, 1275648), (256, 1001583), (264, 971232), (268, 956736), (288, 890296), (302, 849024), (352, 728424), (384, 667722), (396, 647488), (402, 637824), (453, 566016), (528, 485616), (536, 478368), (576, 445148), (603, 425216), (604, 424512), (704, 364212), (737, 347904), (768, 333861), (792, 323744), (804, 318912), (906, 283008), (1056, 242808), (1072, 239184), (1152, 222574), (1206, 212608), (1208, 212256), (1359, 188672), (1408, 182106), (1474, 173952), (1584, 161872), (1608, 159456), (1661, 154368), (1812, 141504), (2112, 121404), (2144, 119592), (2211, 115968), (2304, 111287), (2412, 106304), (2416, 106128), (2718, 94336), (2816, 91053), (2948, 86976), (3168, 80936), (3216, 79728), (3322, 77184), (3624, 70752), (4224, 60702), (4288, 59796), (4422, 57984), (4824, 53152), (4832, 53064), (4983, 51456), (5436, 47168), (5896, 43488), (6336, 40468), (6432, 39864), (6633, 38656), (6644, 38592), (7248, 35376), (8448, 30351), (8576, 29898), (8844, 28992), (9648, 26576), (9664, 26532), (9966, 25728), (10117, 25344), (10872, 23584), (11792, 21744), (12672, 20234), (12864, 19932), (13266, 19328), (13288, 19296), (14496, 17688), (14949, 17152)]