261065728

素因数分解:

$2^{10}\times 7^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 198

約数和(自身を含む): 682805508

約数和(自身を除く): 421739780

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 49, 56, 64, 77, 86, 88, 98, 112, 121, 128, 154, 172, 176, 196, 224, 242, 256, 301, 308, 344, 352, 392, 448, 473, 484, 512, 539, 602, 616, 688, 704, 784, 847, 896, 946, 968, 1024, 1078, 1204, 1232, 1376, 1408, 1568, 1694, 1792, 1892, 1936, 2107, 2156, 2408, 2464, 2752, 2816, 3136, 3311, 3388, 3584, 3784, 3872, 4214, 4312, 4816, 4928, 5203, 5504, 5632, 5929, 6272, 6622, 6776, 7168, 7568, 7744, 8428, 8624, 9632, 9856, 10406, 11008, 11264, 11858, 12544, 13244, 13552, 15136, 15488, 16856, 17248, 19264, 19712, 20812, 22016, 23177, 23716, 25088, 26488, 27104, 30272, 30976, 33712, 34496, 36421, 38528, 39424, 41624, 44032, 46354, 47432, 50176, 52976, 54208, 60544, 61952, 67424, 68992, 72842, 77056, 78848, 83248, 92708, 94864, 105952, 108416, 121088, 123904, 134848, 137984, 145684, 154112, 166496, 185416, 189728, 211904, 216832, 242176, 254947, 269696, 275968, 291368, 308224, 332992, 370832, 379456, 423808, 433664, 484352, 509894, 539392, 551936, 582736, 665984, 741664, 758912, 847616, 867328, 1019788, 1078784, 1165472, 1331968, 1483328, 1517824, 1695232, 2039576, 2157568, 2330944, 2663936, 2966656, 3035648, 3390464, 4079152, 4661888, 5327872, 5933312, 6071296, 8158304, 9323776, 11866624, 16316608, 18647552, 23733248, 32633216, 37295104, 65266432, 130532864, 261065728]

約数ペア:

[(1, 261065728), (2, 130532864), (4, 65266432), (7, 37295104), (8, 32633216), (11, 23733248), (14, 18647552), (16, 16316608), (22, 11866624), (28, 9323776), (32, 8158304), (43, 6071296), (44, 5933312), (49, 5327872), (56, 4661888), (64, 4079152), (77, 3390464), (86, 3035648), (88, 2966656), (98, 2663936), (112, 2330944), (121, 2157568), (128, 2039576), (154, 1695232), (172, 1517824), (176, 1483328), (196, 1331968), (224, 1165472), (242, 1078784), (256, 1019788), (301, 867328), (308, 847616), (344, 758912), (352, 741664), (392, 665984), (448, 582736), (473, 551936), (484, 539392), (512, 509894), (539, 484352), (602, 433664), (616, 423808), (688, 379456), (704, 370832), (784, 332992), (847, 308224), (896, 291368), (946, 275968), (968, 269696), (1024, 254947), (1078, 242176), (1204, 216832), (1232, 211904), (1376, 189728), (1408, 185416), (1568, 166496), (1694, 154112), (1792, 145684), (1892, 137984), (1936, 134848), (2107, 123904), (2156, 121088), (2408, 108416), (2464, 105952), (2752, 94864), (2816, 92708), (3136, 83248), (3311, 78848), (3388, 77056), (3584, 72842), (3784, 68992), (3872, 67424), (4214, 61952), (4312, 60544), (4816, 54208), (4928, 52976), (5203, 50176), (5504, 47432), (5632, 46354), (5929, 44032), (6272, 41624), (6622, 39424), (6776, 38528), (7168, 36421), (7568, 34496), (7744, 33712), (8428, 30976), (8624, 30272), (9632, 27104), (9856, 26488), (10406, 25088), (11008, 23716), (11264, 23177), (11858, 22016), (12544, 20812), (13244, 19712), (13552, 19264), (15136, 17248), (15488, 16856)]