257550728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{4657}}^1$

素因数の和:4917

約数の個数: 32

約数和(自身を含む): 500828160

約数和(自身を除く): 243277432

約数列:

[1, 2, 4, 8, 31, 62, 124, 223, 248, 446, 892, 1784, 4657, 6913, 9314, 13826, 18628, 27652, 37256, 55304, 144367, 288734, 577468, 1038511, 1154936, 2077022, 4154044, 8308088, 32193841, 64387682, 128775364, 257550728]

約数ペア:

[(1, 257550728), (2, 128775364), (4, 64387682), (8, 32193841), (31, 8308088), (62, 4154044), (124, 2077022), (223, 1154936), (248, 1038511), (446, 577468), (892, 288734), (1784, 144367), (4657, 55304), (6913, 37256), (9314, 27652), (13826, 18628)]