81310768

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2186

約数の個数: 80

約数和(自身を含む): 202844160

約数和(自身を除く): 121533392

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 616, 682, 868, 1232, 1364, 1736, 2129, 2387, 2728, 3472, 4258, 4774, 5456, 8516, 9548, 14903, 17032, 19096, 23419, 29806, 34064, 38192, 46838, 59612, 65999, 93676, 119224, 131998, 163933, 187352, 238448, 263996, 327866, 374704, 461993, 527992, 655732, 725989, 923986, 1055984, 1311464, 1451978, 1847972, 2622928, 2903956, 3695944, 5081923, 5807912, 7391888, 10163846, 11615824, 20327692, 40655384, 81310768]

約数ペア:

[(1, 81310768), (2, 40655384), (4, 20327692), (7, 11615824), (8, 10163846), (11, 7391888), (14, 5807912), (16, 5081923), (22, 3695944), (28, 2903956), (31, 2622928), (44, 1847972), (56, 1451978), (62, 1311464), (77, 1055984), (88, 923986), (112, 725989), (124, 655732), (154, 527992), (176, 461993), (217, 374704), (248, 327866), (308, 263996), (341, 238448), (434, 187352), (496, 163933), (616, 131998), (682, 119224), (868, 93676), (1232, 65999), (1364, 59612), (1736, 46838), (2129, 38192), (2387, 34064), (2728, 29806), (3472, 23419), (4258, 19096), (4774, 17032), (5456, 14903), (8516, 9548)]