20708576

素因数分解:

$2^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:352

約数の個数: 72

約数和(自身を含む): 48607776

約数和(自身を除く): 27899200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 94, 98, 112, 188, 196, 224, 281, 329, 376, 392, 562, 658, 752, 784, 1124, 1316, 1504, 1568, 1967, 2248, 2303, 2632, 3934, 4496, 4606, 5264, 7868, 8992, 9212, 10528, 13207, 13769, 15736, 18424, 26414, 27538, 31472, 36848, 52828, 55076, 62944, 73696, 92449, 105656, 110152, 184898, 211312, 220304, 369796, 422624, 440608, 647143, 739592, 1294286, 1479184, 2588572, 2958368, 5177144, 10354288, 20708576]

約数ペア:

[(1, 20708576), (2, 10354288), (4, 5177144), (7, 2958368), (8, 2588572), (14, 1479184), (16, 1294286), (28, 739592), (32, 647143), (47, 440608), (49, 422624), (56, 369796), (94, 220304), (98, 211312), (112, 184898), (188, 110152), (196, 105656), (224, 92449), (281, 73696), (329, 62944), (376, 55076), (392, 52828), (562, 36848), (658, 31472), (752, 27538), (784, 26414), (1124, 18424), (1316, 15736), (1504, 13769), (1568, 13207), (1967, 10528), (2248, 9212), (2303, 8992), (2632, 7868), (3934, 5264), (4496, 4606)]