20171255216

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{7949}}^1$

素因数の和:8266

約数の個数: 80

約数和(自身を含む): 45267936000

約数和(自身を除く): 25096680784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 163, 278, 326, 556, 652, 973, 1112, 1141, 1304, 1946, 2224, 2282, 2608, 3892, 4564, 7784, 7949, 9128, 15568, 15898, 18256, 22657, 31796, 45314, 55643, 63592, 90628, 111286, 127184, 158599, 181256, 222572, 317198, 362512, 445144, 634396, 890288, 1104911, 1268792, 1295687, 2209822, 2537584, 2591374, 4419644, 5182748, 7734377, 8839288, 9069809, 10365496, 15468754, 17678576, 18139618, 20730992, 30937508, 36279236, 61875016, 72558472, 123750032, 145116944, 180100493, 360200986, 720401972, 1260703451, 1440803944, 2521406902, 2881607888, 5042813804, 10085627608, 20171255216]

約数ペア:

[(1, 20171255216), (2, 10085627608), (4, 5042813804), (7, 2881607888), (8, 2521406902), (14, 1440803944), (16, 1260703451), (28, 720401972), (56, 360200986), (112, 180100493), (139, 145116944), (163, 123750032), (278, 72558472), (326, 61875016), (556, 36279236), (652, 30937508), (973, 20730992), (1112, 18139618), (1141, 17678576), (1304, 15468754), (1946, 10365496), (2224, 9069809), (2282, 8839288), (2608, 7734377), (3892, 5182748), (4564, 4419644), (7784, 2591374), (7949, 2537584), (9128, 2209822), (15568, 1295687), (15898, 1268792), (18256, 1104911), (22657, 890288), (31796, 634396), (45314, 445144), (55643, 362512), (63592, 317198), (90628, 222572), (111286, 181256), (127184, 158599)]