128889232

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{187339}}^1$

素因数の和:187390

約数の個数: 20

約数和(自身を含む): 255531760

約数和(自身を除く): 126642528

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 187339, 374678, 749356, 1498712, 2997424, 8055577, 16111154, 32222308, 64444616, 128889232]

約数ペア:

[(1, 128889232), (2, 64444616), (4, 32222308), (8, 16111154), (16, 8055577), (43, 2997424), (86, 1498712), (172, 749356), (344, 374678), (688, 187339)]