131132456

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 319334400

約数和(自身を除く): 188201944

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 59, 71, 86, 91, 104, 118, 142, 172, 182, 236, 284, 301, 344, 364, 413, 472, 497, 559, 568, 602, 728, 767, 826, 923, 994, 1118, 1204, 1534, 1652, 1846, 1988, 2236, 2408, 2537, 3053, 3068, 3304, 3692, 3913, 3976, 4189, 4472, 5074, 5369, 6106, 6136, 6461, 7384, 7826, 8378, 10148, 10738, 12212, 12922, 15652, 16756, 17759, 20296, 21371, 21476, 24424, 25844, 29323, 31304, 32981, 33512, 35518, 39689, 42742, 42952, 51688, 54457, 58646, 65962, 71036, 79378, 85484, 108914, 117292, 131924, 142072, 158756, 170968, 180127, 217828, 230867, 234584, 263848, 277823, 317512, 360254, 381199, 435656, 461734, 555646, 720508, 762398, 923468, 1111292, 1260889, 1441016, 1524796, 1846936, 2222584, 2341651, 2521778, 3049592, 4683302, 5043556, 9366604, 10087112, 16391557, 18733208, 32783114, 65566228, 131132456]

約数ペア:

[(1, 131132456), (2, 65566228), (4, 32783114), (7, 18733208), (8, 16391557), (13, 10087112), (14, 9366604), (26, 5043556), (28, 4683302), (43, 3049592), (52, 2521778), (56, 2341651), (59, 2222584), (71, 1846936), (86, 1524796), (91, 1441016), (104, 1260889), (118, 1111292), (142, 923468), (172, 762398), (182, 720508), (236, 555646), (284, 461734), (301, 435656), (344, 381199), (364, 360254), (413, 317512), (472, 277823), (497, 263848), (559, 234584), (568, 230867), (602, 217828), (728, 180127), (767, 170968), (826, 158756), (923, 142072), (994, 131924), (1118, 117292), (1204, 108914), (1534, 85484), (1652, 79378), (1846, 71036), (1988, 65962), (2236, 58646), (2408, 54457), (2537, 51688), (3053, 42952), (3068, 42742), (3304, 39689), (3692, 35518), (3913, 33512), (3976, 32981), (4189, 31304), (4472, 29323), (5074, 25844), (5369, 24424), (6106, 21476), (6136, 21371), (6461, 20296), (7384, 17759), (7826, 16756), (8378, 15652), (10148, 12922), (10738, 12212)]