81240885

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4003}}^1$

素因数の和:4066

約数の個数: 48

約数和(自身を含む): 157405248

約数和(自身を除く): 76164363

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 1353, 1845, 2255, 4003, 4059, 6765, 12009, 20015, 20295, 36027, 44033, 60045, 132099, 164123, 180135, 220165, 396297, 492369, 660495, 820615, 1477107, 1805353, 1981485, 2461845, 5416059, 7385535, 9026765, 16248177, 27080295, 81240885]

約数ペア:

[(1, 81240885), (3, 27080295), (5, 16248177), (9, 9026765), (11, 7385535), (15, 5416059), (33, 2461845), (41, 1981485), (45, 1805353), (55, 1477107), (99, 820615), (123, 660495), (165, 492369), (205, 396297), (369, 220165), (451, 180135), (495, 164123), (615, 132099), (1353, 60045), (1845, 44033), (2255, 36027), (4003, 20295), (4059, 20015), (6765, 12009)]