25717168

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 25842032

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 197, 199, 328, 394, 398, 656, 788, 796, 1576, 1592, 3152, 3184, 8077, 8159, 16154, 16318, 32308, 32636, 39203, 64616, 65272, 78406, 129232, 130544, 156812, 313624, 627248, 1607323, 3214646, 6429292, 12858584, 25717168]

約数ペア:

[(1, 25717168), (2, 12858584), (4, 6429292), (8, 3214646), (16, 1607323), (41, 627248), (82, 313624), (164, 156812), (197, 130544), (199, 129232), (328, 78406), (394, 65272), (398, 64616), (656, 39203), (788, 32636), (796, 32308), (1576, 16318), (1592, 16154), (3152, 8159), (3184, 8077)]