490857789

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 699955200

約数和(自身を除く): 209097411

約数列:

[1, 3, 23, 61, 69, 139, 183, 417, 839, 1403, 2517, 3197, 4209, 8479, 9591, 19297, 25437, 51179, 57891, 116621, 153537, 195017, 349863, 585051, 1177117, 2682283, 3531351, 7113881, 8046849, 21341643, 163619263, 490857789]

約数ペア:

[(1, 490857789), (3, 163619263), (23, 21341643), (61, 8046849), (69, 7113881), (139, 3531351), (183, 2682283), (417, 1177117), (839, 585051), (1403, 349863), (2517, 195017), (3197, 153537), (4209, 116621), (8479, 57891), (9591, 51179), (19297, 25437)]