209688640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:385

約数の個数: 168

約数和(自身を含む): 596261952

約数和(自身を除く): 386573312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 64, 70, 80, 86, 98, 112, 140, 160, 172, 196, 215, 224, 245, 280, 301, 311, 320, 344, 392, 430, 448, 490, 560, 602, 622, 688, 784, 860, 980, 1120, 1204, 1244, 1376, 1505, 1555, 1568, 1720, 1960, 2107, 2177, 2240, 2408, 2488, 2752, 3010, 3110, 3136, 3440, 3920, 4214, 4354, 4816, 4976, 6020, 6220, 6880, 7840, 8428, 8708, 9632, 9952, 10535, 10885, 12040, 12440, 13373, 13760, 15239, 15680, 16856, 17416, 19264, 19904, 21070, 21770, 24080, 24880, 26746, 30478, 33712, 34832, 42140, 43540, 48160, 49760, 53492, 60956, 66865, 67424, 69664, 76195, 84280, 87080, 93611, 96320, 99520, 106984, 121912, 133730, 134848, 139328, 152390, 168560, 174160, 187222, 213968, 243824, 267460, 304780, 337120, 348320, 374444, 427936, 468055, 487648, 534920, 609560, 655277, 674240, 696640, 748888, 855872, 936110, 975296, 1069840, 1219120, 1310554, 1497776, 1872220, 2139680, 2438240, 2621108, 2995552, 3276385, 3744440, 4279360, 4876480, 5242216, 5991104, 6552770, 7488880, 10484432, 13105540, 14977760, 20968864, 26211080, 29955520, 41937728, 52422160, 104844320, 209688640]

約数ペア:

[(1, 209688640), (2, 104844320), (4, 52422160), (5, 41937728), (7, 29955520), (8, 26211080), (10, 20968864), (14, 14977760), (16, 13105540), (20, 10484432), (28, 7488880), (32, 6552770), (35, 5991104), (40, 5242216), (43, 4876480), (49, 4279360), (56, 3744440), (64, 3276385), (70, 2995552), (80, 2621108), (86, 2438240), (98, 2139680), (112, 1872220), (140, 1497776), (160, 1310554), (172, 1219120), (196, 1069840), (215, 975296), (224, 936110), (245, 855872), (280, 748888), (301, 696640), (311, 674240), (320, 655277), (344, 609560), (392, 534920), (430, 487648), (448, 468055), (490, 427936), (560, 374444), (602, 348320), (622, 337120), (688, 304780), (784, 267460), (860, 243824), (980, 213968), (1120, 187222), (1204, 174160), (1244, 168560), (1376, 152390), (1505, 139328), (1555, 134848), (1568, 133730), (1720, 121912), (1960, 106984), (2107, 99520), (2177, 96320), (2240, 93611), (2408, 87080), (2488, 84280), (2752, 76195), (3010, 69664), (3110, 67424), (3136, 66865), (3440, 60956), (3920, 53492), (4214, 49760), (4354, 48160), (4816, 43540), (4976, 42140), (6020, 34832), (6220, 33712), (6880, 30478), (7840, 26746), (8428, 24880), (8708, 24080), (9632, 21770), (9952, 21070), (10535, 19904), (10885, 19264), (12040, 17416), (12440, 16856), (13373, 15680), (13760, 15239)]