20522992

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 49139712

約数和(自身を除く): 28616720

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 46, 56, 62, 92, 112, 124, 161, 184, 217, 248, 257, 322, 368, 434, 496, 514, 644, 713, 868, 1028, 1288, 1426, 1736, 1799, 2056, 2576, 2852, 3472, 3598, 4112, 4991, 5704, 5911, 7196, 7967, 9982, 11408, 11822, 14392, 15934, 19964, 23644, 28784, 31868, 39928, 41377, 47288, 55769, 63736, 79856, 82754, 94576, 111538, 127472, 165508, 183241, 223076, 331016, 366482, 446152, 662032, 732964, 892304, 1282687, 1465928, 2565374, 2931856, 5130748, 10261496, 20522992]

約数ペア:

[(1, 20522992), (2, 10261496), (4, 5130748), (7, 2931856), (8, 2565374), (14, 1465928), (16, 1282687), (23, 892304), (28, 732964), (31, 662032), (46, 446152), (56, 366482), (62, 331016), (92, 223076), (112, 183241), (124, 165508), (161, 127472), (184, 111538), (217, 94576), (248, 82754), (257, 79856), (322, 63736), (368, 55769), (434, 47288), (496, 41377), (514, 39928), (644, 31868), (713, 28784), (868, 23644), (1028, 19964), (1288, 15934), (1426, 14392), (1736, 11822), (1799, 11408), (2056, 9982), (2576, 7967), (2852, 7196), (3472, 5911), (3598, 5704), (4112, 4991)]