128122568

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11497}}^1$

素因数の和:11709

約数の個数: 32

約数和(自身を含む): 275952000

約数和(自身を除く): 147829432

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 2786, 5572, 11144, 11497, 22994, 45988, 80479, 91976, 160958, 321916, 643832, 2287903, 4575806, 9151612, 16015321, 18303224, 32030642, 64061284, 128122568]

約数ペア:

[(1, 128122568), (2, 64061284), (4, 32030642), (7, 18303224), (8, 16015321), (14, 9151612), (28, 4575806), (56, 2287903), (199, 643832), (398, 321916), (796, 160958), (1393, 91976), (1592, 80479), (2786, 45988), (5572, 22994), (11144, 11497)]