28311264

素因数分解:

$2^5\times 3^2\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:712

約数の個数: 72

約数和(自身を含む): 81081000

約数和(自身を除く): 52769736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 197, 288, 394, 499, 591, 788, 998, 1182, 1497, 1576, 1773, 1996, 2364, 2994, 3152, 3546, 3992, 4491, 4728, 5988, 6304, 7092, 7984, 8982, 9456, 11976, 14184, 15968, 17964, 18912, 23952, 28368, 35928, 47904, 56736, 71856, 98303, 143712, 196606, 294909, 393212, 589818, 786424, 884727, 1179636, 1572848, 1769454, 2359272, 3145696, 3538908, 4718544, 7077816, 9437088, 14155632, 28311264]

約数ペア:

[(1, 28311264), (2, 14155632), (3, 9437088), (4, 7077816), (6, 4718544), (8, 3538908), (9, 3145696), (12, 2359272), (16, 1769454), (18, 1572848), (24, 1179636), (32, 884727), (36, 786424), (48, 589818), (72, 393212), (96, 294909), (144, 196606), (197, 143712), (288, 98303), (394, 71856), (499, 56736), (591, 47904), (788, 35928), (998, 28368), (1182, 23952), (1497, 18912), (1576, 17964), (1773, 15968), (1996, 14184), (2364, 11976), (2994, 9456), (3152, 8982), (3546, 7984), (3992, 7092), (4491, 6304), (4728, 5988)]