138658288

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{279553}}^1$

素因数の和:279592

約数の個数: 20

約数和(自身を含む): 277317568

約数和(自身を除く): 138659280

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 279553, 559106, 1118212, 2236424, 4472848, 8666143, 17332286, 34664572, 69329144, 138658288]

約数ペア:

[(1, 138658288), (2, 69329144), (4, 34664572), (8, 17332286), (16, 8666143), (31, 4472848), (62, 2236424), (124, 1118212), (248, 559106), (496, 279553)]