257536748

素因数分解:

$2^2\times 7^3\times {\mathrm{337}}^1\times {\mathrm{557}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 528091200

約数和(自身を除く): 270554452

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 337, 343, 557, 674, 686, 1114, 1348, 1372, 2228, 2359, 3899, 4718, 7798, 9436, 15596, 16513, 27293, 33026, 54586, 66052, 109172, 115591, 187709, 191051, 231182, 375418, 382102, 462364, 750836, 764204, 1313963, 2627926, 5255852, 9197741, 18395482, 36790964, 64384187, 128768374, 257536748]

約数ペア:

[(1, 257536748), (2, 128768374), (4, 64384187), (7, 36790964), (14, 18395482), (28, 9197741), (49, 5255852), (98, 2627926), (196, 1313963), (337, 764204), (343, 750836), (557, 462364), (674, 382102), (686, 375418), (1114, 231182), (1348, 191051), (1372, 187709), (2228, 115591), (2359, 109172), (3899, 66052), (4718, 54586), (7798, 33026), (9436, 27293), (15596, 16513)]