311855436

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:556

約数の個数: 144

約数和(自身を含む): 887927040

約数和(自身を除く): 576071604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 43, 46, 57, 69, 76, 86, 92, 114, 129, 138, 171, 172, 207, 228, 258, 276, 342, 387, 414, 437, 461, 516, 684, 774, 817, 828, 874, 922, 989, 1311, 1383, 1548, 1634, 1748, 1844, 1978, 2451, 2622, 2766, 2967, 3268, 3933, 3956, 4149, 4902, 5244, 5532, 5934, 7353, 7866, 8298, 8759, 8901, 9804, 10603, 11868, 14706, 15732, 16596, 17518, 17802, 18791, 19823, 21206, 26277, 29412, 31809, 35036, 35604, 37582, 39646, 42412, 52554, 56373, 59469, 63618, 75164, 78831, 79292, 95427, 105108, 112746, 118938, 127236, 157662, 169119, 178407, 190854, 201457, 225492, 237876, 315324, 338238, 356814, 376637, 381708, 402914, 455929, 604371, 676476, 713628, 753274, 805828, 911858, 1129911, 1208742, 1367787, 1506548, 1813113, 1823716, 2259822, 2417484, 2735574, 3389733, 3626226, 4103361, 4519644, 5471148, 6779466, 7252452, 8206722, 8662651, 13558932, 16413444, 17325302, 25987953, 34650604, 51975906, 77963859, 103951812, 155927718, 311855436]

約数ペア:

[(1, 311855436), (2, 155927718), (3, 103951812), (4, 77963859), (6, 51975906), (9, 34650604), (12, 25987953), (18, 17325302), (19, 16413444), (23, 13558932), (36, 8662651), (38, 8206722), (43, 7252452), (46, 6779466), (57, 5471148), (69, 4519644), (76, 4103361), (86, 3626226), (92, 3389733), (114, 2735574), (129, 2417484), (138, 2259822), (171, 1823716), (172, 1813113), (207, 1506548), (228, 1367787), (258, 1208742), (276, 1129911), (342, 911858), (387, 805828), (414, 753274), (437, 713628), (461, 676476), (516, 604371), (684, 455929), (774, 402914), (817, 381708), (828, 376637), (874, 356814), (922, 338238), (989, 315324), (1311, 237876), (1383, 225492), (1548, 201457), (1634, 190854), (1748, 178407), (1844, 169119), (1978, 157662), (2451, 127236), (2622, 118938), (2766, 112746), (2967, 105108), (3268, 95427), (3933, 79292), (3956, 78831), (4149, 75164), (4902, 63618), (5244, 59469), (5532, 56373), (5934, 52554), (7353, 42412), (7866, 39646), (8298, 37582), (8759, 35604), (8901, 35036), (9804, 31809), (10603, 29412), (11868, 26277), (14706, 21206), (15732, 19823), (16596, 18791), (17518, 17802)]