7991984

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:538

約数の個数: 80

約数和(自身を含む): 20832000

約数和(自身を除く): 12840016

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 499, 572, 616, 728, 998, 1001, 1144, 1232, 1456, 1996, 2002, 2288, 3493, 3992, 4004, 5489, 6487, 6986, 7984, 8008, 10978, 12974, 13972, 16016, 21956, 25948, 27944, 38423, 43912, 45409, 51896, 55888, 71357, 76846, 87824, 90818, 103792, 142714, 153692, 181636, 285428, 307384, 363272, 499499, 570856, 614768, 726544, 998998, 1141712, 1997996, 3995992, 7991984]

約数ペア:

[(1, 7991984), (2, 3995992), (4, 1997996), (7, 1141712), (8, 998998), (11, 726544), (13, 614768), (14, 570856), (16, 499499), (22, 363272), (26, 307384), (28, 285428), (44, 181636), (52, 153692), (56, 142714), (77, 103792), (88, 90818), (91, 87824), (104, 76846), (112, 71357), (143, 55888), (154, 51896), (176, 45409), (182, 43912), (208, 38423), (286, 27944), (308, 25948), (364, 21956), (499, 16016), (572, 13972), (616, 12974), (728, 10978), (998, 8008), (1001, 7984), (1144, 6986), (1232, 6487), (1456, 5489), (1996, 4004), (2002, 3992), (2288, 3493)]