258912815

素因数分解:

$5^1\times 7^2\times {\mathrm{607}}^1\times {\mathrm{1741}}^1$

素因数の和:2367

約数の個数: 24

約数和(自身を含む): 362224512

約数和(自身を除く): 103311697

約数列:

[1, 5, 7, 35, 49, 245, 607, 1741, 3035, 4249, 8705, 12187, 21245, 29743, 60935, 85309, 148715, 426545, 1056787, 5283935, 7397509, 36987545, 51782563, 258912815]

約数ペア:

[(1, 258912815), (5, 51782563), (7, 36987545), (35, 7397509), (49, 5283935), (245, 1056787), (607, 426545), (1741, 148715), (3035, 85309), (4249, 60935), (8705, 29743), (12187, 21245)]