279209889

素因数分解:

$3^3\times 7^4\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:169

約数の個数: 80

約数和(自身を含む): 497457600

約数和(自身を除く): 218247711

約数列:

[1, 3, 7, 9, 21, 27, 49, 59, 63, 73, 147, 177, 189, 219, 343, 413, 441, 511, 531, 657, 1029, 1239, 1323, 1533, 1593, 1971, 2401, 2891, 3087, 3577, 3717, 4307, 4599, 7203, 8673, 9261, 10731, 11151, 12921, 13797, 20237, 21609, 25039, 26019, 30149, 32193, 38763, 60711, 64827, 75117, 78057, 90447, 96579, 116289, 141659, 175273, 182133, 211043, 225351, 271341, 424977, 525819, 546399, 633129, 676053, 814023, 1274931, 1477301, 1577457, 1899387, 3824793, 4431903, 4732371, 5698161, 10341107, 13295709, 31023321, 39887127, 93069963, 279209889]

約数ペア:

[(1, 279209889), (3, 93069963), (7, 39887127), (9, 31023321), (21, 13295709), (27, 10341107), (49, 5698161), (59, 4732371), (63, 4431903), (73, 3824793), (147, 1899387), (177, 1577457), (189, 1477301), (219, 1274931), (343, 814023), (413, 676053), (441, 633129), (511, 546399), (531, 525819), (657, 424977), (1029, 271341), (1239, 225351), (1323, 211043), (1533, 182133), (1593, 175273), (1971, 141659), (2401, 116289), (2891, 96579), (3087, 90447), (3577, 78057), (3717, 75117), (4307, 64827), (4599, 60711), (7203, 38763), (8673, 32193), (9261, 30149), (10731, 26019), (11151, 25039), (12921, 21609), (13797, 20237)]