81530368

素因数分解:

$2^9\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:100

約数の個数: 120

約数和(自身を含む): 188436600

約数和(自身を除く): 106906232

約数列:

[1, 2, 4, 8, 16, 17, 19, 29, 32, 34, 38, 58, 64, 68, 76, 116, 128, 136, 152, 232, 256, 272, 289, 304, 323, 464, 493, 512, 544, 551, 578, 608, 646, 928, 986, 1088, 1102, 1156, 1216, 1292, 1856, 1972, 2176, 2204, 2312, 2432, 2584, 3712, 3944, 4352, 4408, 4624, 4864, 5168, 5491, 7424, 7888, 8381, 8704, 8816, 9248, 9367, 9728, 10336, 10982, 14848, 15776, 16762, 17632, 18496, 18734, 20672, 21964, 31552, 33524, 35264, 36992, 37468, 41344, 43928, 63104, 67048, 70528, 73984, 74936, 82688, 87856, 126208, 134096, 141056, 147968, 149872, 159239, 165376, 175712, 252416, 268192, 282112, 299744, 318478, 351424, 536384, 599488, 636956, 702848, 1072768, 1198976, 1273912, 1405696, 2145536, 2397952, 2547824, 2811392, 4291072, 4795904, 5095648, 10191296, 20382592, 40765184, 81530368]

約数ペア:

[(1, 81530368), (2, 40765184), (4, 20382592), (8, 10191296), (16, 5095648), (17, 4795904), (19, 4291072), (29, 2811392), (32, 2547824), (34, 2397952), (38, 2145536), (58, 1405696), (64, 1273912), (68, 1198976), (76, 1072768), (116, 702848), (128, 636956), (136, 599488), (152, 536384), (232, 351424), (256, 318478), (272, 299744), (289, 282112), (304, 268192), (323, 252416), (464, 175712), (493, 165376), (512, 159239), (544, 149872), (551, 147968), (578, 141056), (608, 134096), (646, 126208), (928, 87856), (986, 82688), (1088, 74936), (1102, 73984), (1156, 70528), (1216, 67048), (1292, 63104), (1856, 43928), (1972, 41344), (2176, 37468), (2204, 36992), (2312, 35264), (2432, 33524), (2584, 31552), (3712, 21964), (3944, 20672), (4352, 18734), (4408, 18496), (4624, 17632), (4864, 16762), (5168, 15776), (5491, 14848), (7424, 10982), (7888, 10336), (8381, 9728), (8704, 9367), (8816, 9248)]