257180714

素因数分解:

$2^1\times 7^6\times {\mathrm{1093}}^1$

素因数の和:1137

約数の個数: 28

約数和(自身を含む): 450477474

約数和(自身を除く): 193296760

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 1093, 2186, 2401, 4802, 7651, 15302, 16807, 33614, 53557, 107114, 117649, 235298, 374899, 749798, 2624293, 5248586, 18370051, 36740102, 128590357, 257180714]

約数ペア:

[(1, 257180714), (2, 128590357), (7, 36740102), (14, 18370051), (49, 5248586), (98, 2624293), (343, 749798), (686, 374899), (1093, 235298), (2186, 117649), (2401, 107114), (4802, 53557), (7651, 33614), (15302, 16807)]