1287942705

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{83443}}^1$

素因数の和:83475

約数の個数: 48

約数和(自身を含む): 2603452800

約数和(自身を除く): 1315510095

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 2205, 3087, 5145, 15435, 83443, 250329, 417215, 584101, 750987, 1251645, 1752303, 2920505, 3754935, 4088707, 5256909, 8761515, 12266121, 20443535, 26284545, 28620949, 36798363, 61330605, 85862847, 143104745, 183991815, 257588541, 429314235, 1287942705]

約数ペア:

[(1, 1287942705), (3, 429314235), (5, 257588541), (7, 183991815), (9, 143104745), (15, 85862847), (21, 61330605), (35, 36798363), (45, 28620949), (49, 26284545), (63, 20443535), (105, 12266121), (147, 8761515), (245, 5256909), (315, 4088707), (343, 3754935), (441, 2920505), (735, 1752303), (1029, 1251645), (1715, 750987), (2205, 584101), (3087, 417215), (5145, 250329), (15435, 83443)]