27720963080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16116839}}^1$

素因数の和:16116893

約数の個数: 32

約数和(自身を含む): 63822686400

約数和(自身を除く): 36101723320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16116839, 32233678, 64467356, 80584195, 128934712, 161168390, 322336780, 644673560, 693024077, 1386048154, 2772096308, 3465120385, 5544192616, 6930240770, 13860481540, 27720963080]

約数ペア:

[(1, 27720963080), (2, 13860481540), (4, 6930240770), (5, 5544192616), (8, 3465120385), (10, 2772096308), (20, 1386048154), (40, 693024077), (43, 644673560), (86, 322336780), (172, 161168390), (215, 128934712), (344, 80584195), (430, 64467356), (860, 32233678), (1720, 16116839)]