83721385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 113508864

約数和(自身を除く): 29787479

約数列:

[1, 5, 11, 41, 55, 137, 205, 271, 451, 685, 1355, 1507, 2255, 2981, 5617, 7535, 11111, 14905, 28085, 37127, 55555, 61787, 122221, 185635, 308935, 408397, 611105, 1522207, 2041985, 7611035, 16744277, 83721385]

約数ペア:

[(1, 83721385), (5, 16744277), (11, 7611035), (41, 2041985), (55, 1522207), (137, 611105), (205, 408397), (271, 308935), (451, 185635), (685, 122221), (1355, 61787), (1507, 55555), (2255, 37127), (2981, 28085), (5617, 14905), (7535, 11111)]