128663912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{28771}}^1$

素因数の和:28833

約数の個数: 32

約数和(自身を含む): 265853280

約数和(自身を除く): 137189368

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 28771, 57542, 115084, 230168, 374023, 748046, 1237153, 1496092, 2474306, 2992184, 4948612, 9897224, 16082989, 32165978, 64331956, 128663912]

約数ペア:

[(1, 128663912), (2, 64331956), (4, 32165978), (8, 16082989), (13, 9897224), (26, 4948612), (43, 2992184), (52, 2474306), (86, 1496092), (104, 1237153), (172, 748046), (344, 374023), (559, 230168), (1118, 115084), (2236, 57542), (4472, 28771)]