18845035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 25873344

約数和(自身を除く): 7028309

約数列:

[1, 5, 11, 41, 55, 61, 137, 205, 305, 451, 671, 685, 1507, 2255, 2501, 3355, 5617, 7535, 8357, 12505, 27511, 28085, 41785, 61787, 91927, 137555, 308935, 342637, 459635, 1713185, 3769007, 18845035]

約数ペア:

[(1, 18845035), (5, 3769007), (11, 1713185), (41, 459635), (55, 342637), (61, 308935), (137, 137555), (205, 91927), (305, 61787), (451, 41785), (671, 28085), (685, 27511), (1507, 12505), (2255, 8357), (2501, 7535), (3355, 5617)]