128217916

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{32411}}^1$

素因数の和:32481

約数の個数: 24

約数和(自身を含む): 239589504

約数和(自身を除く): 111371588

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 32411, 64822, 129644, 745453, 1393673, 1490906, 2787346, 2981812, 5574692, 32054479, 64108958, 128217916]

約数ペア:

[(1, 128217916), (2, 64108958), (4, 32054479), (23, 5574692), (43, 2981812), (46, 2787346), (86, 1490906), (92, 1393673), (172, 745453), (989, 129644), (1978, 64822), (3956, 32411)]