2561040464

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{504937}}^1$

素因数の和:505262

約数の個数: 20

約数和(自身を含む): 4977678804

約数和(自身を除く): 2416638340

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 5072, 504937, 1009874, 2019748, 4039496, 8078992, 160065029, 320130058, 640260116, 1280520232, 2561040464]

約数ペア:

[(1, 2561040464), (2, 1280520232), (4, 640260116), (8, 320130058), (16, 160065029), (317, 8078992), (634, 4039496), (1268, 2019748), (2536, 1009874), (5072, 504937)]