81239808

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 238085120

約数和(自身を除く): 156845312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 79, 96, 103, 104, 128, 156, 158, 192, 206, 208, 237, 256, 309, 312, 316, 384, 412, 416, 474, 618, 624, 632, 768, 824, 832, 948, 1027, 1236, 1248, 1264, 1339, 1648, 1664, 1896, 2054, 2472, 2496, 2528, 2678, 3081, 3296, 3328, 3792, 4017, 4108, 4944, 4992, 5056, 5356, 6162, 6592, 7584, 8034, 8137, 8216, 9888, 9984, 10112, 10712, 12324, 13184, 15168, 16068, 16274, 16432, 19776, 20224, 21424, 24411, 24648, 26368, 30336, 32136, 32548, 32864, 39552, 42848, 48822, 49296, 60672, 64272, 65096, 65728, 79104, 85696, 97644, 98592, 105781, 128544, 130192, 131456, 171392, 195288, 197184, 211562, 257088, 260384, 262912, 317343, 342784, 390576, 394368, 423124, 514176, 520768, 634686, 781152, 788736, 846248, 1028352, 1041536, 1269372, 1562304, 1692496, 2083072, 2538744, 3124608, 3384992, 5077488, 6249216, 6769984, 10154976, 13539968, 20309952, 27079936, 40619904, 81239808]

約数ペア:

[(1, 81239808), (2, 40619904), (3, 27079936), (4, 20309952), (6, 13539968), (8, 10154976), (12, 6769984), (13, 6249216), (16, 5077488), (24, 3384992), (26, 3124608), (32, 2538744), (39, 2083072), (48, 1692496), (52, 1562304), (64, 1269372), (78, 1041536), (79, 1028352), (96, 846248), (103, 788736), (104, 781152), (128, 634686), (156, 520768), (158, 514176), (192, 423124), (206, 394368), (208, 390576), (237, 342784), (256, 317343), (309, 262912), (312, 260384), (316, 257088), (384, 211562), (412, 197184), (416, 195288), (474, 171392), (618, 131456), (624, 130192), (632, 128544), (768, 105781), (824, 98592), (832, 97644), (948, 85696), (1027, 79104), (1236, 65728), (1248, 65096), (1264, 64272), (1339, 60672), (1648, 49296), (1664, 48822), (1896, 42848), (2054, 39552), (2472, 32864), (2496, 32548), (2528, 32136), (2678, 30336), (3081, 26368), (3296, 24648), (3328, 24411), (3792, 21424), (4017, 20224), (4108, 19776), (4944, 16432), (4992, 16274), (5056, 16068), (5356, 15168), (6162, 13184), (6592, 12324), (7584, 10712), (8034, 10112), (8137, 9984), (8216, 9888)]