257335578

素因数分解:

$2^1\times 3^2\times {\mathrm{113}}^1\times {\mathrm{126517}}^1$

素因数の和:126638

約数の個数: 24

約数和(自身を含む): 562499028

約数和(自身を除く): 305163450

約数列:

[1, 2, 3, 6, 9, 18, 113, 226, 339, 678, 1017, 2034, 126517, 253034, 379551, 759102, 1138653, 2277306, 14296421, 28592842, 42889263, 85778526, 128667789, 257335578]

約数ペア:

[(1, 257335578), (2, 128667789), (3, 85778526), (6, 42889263), (9, 28592842), (18, 14296421), (113, 2277306), (226, 1138653), (339, 759102), (678, 379551), (1017, 253034), (2034, 126517)]