820511307

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:569

約数の個数: 96

約数和(自身を含む): 1576433664

約数和(自身を除く): 755922357

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 257, 271, 357, 561, 693, 771, 813, 1071, 1309, 1683, 1799, 1897, 2313, 2439, 2827, 2981, 3927, 4369, 4607, 5397, 5691, 8481, 8943, 11781, 13107, 13821, 16191, 17073, 19789, 20867, 25443, 26829, 30583, 32249, 39321, 41463, 48059, 50677, 59367, 62601, 69647, 91749, 96747, 144177, 152031, 178101, 187803, 208941, 275247, 290241, 336413, 354739, 432531, 456093, 487529, 626823, 766117, 1009239, 1064217, 1183999, 1462587, 2298351, 3027717, 3192651, 3551997, 4387761, 5362819, 6895053, 8287993, 10655991, 13023989, 16088457, 24863979, 39071967, 48265371, 74591937, 91167923, 117215901, 273503769, 820511307]

約数ペア:

[(1, 820511307), (3, 273503769), (7, 117215901), (9, 91167923), (11, 74591937), (17, 48265371), (21, 39071967), (33, 24863979), (51, 16088457), (63, 13023989), (77, 10655991), (99, 8287993), (119, 6895053), (153, 5362819), (187, 4387761), (231, 3551997), (257, 3192651), (271, 3027717), (357, 2298351), (561, 1462587), (693, 1183999), (771, 1064217), (813, 1009239), (1071, 766117), (1309, 626823), (1683, 487529), (1799, 456093), (1897, 432531), (2313, 354739), (2439, 336413), (2827, 290241), (2981, 275247), (3927, 208941), (4369, 187803), (4607, 178101), (5397, 152031), (5691, 144177), (8481, 96747), (8943, 91749), (11781, 69647), (13107, 62601), (13821, 59367), (16191, 50677), (17073, 48059), (19789, 41463), (20867, 39321), (25443, 32249), (26829, 30583)]