28679920

素因数分解:

$2^4\times 5^1\times {\mathrm{358499}}^1$

素因数の和:358512

約数の個数: 20

約数和(自身を含む): 66681000

約数和(自身を除く): 38001080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358499, 716998, 1433996, 1792495, 2867992, 3584990, 5735984, 7169980, 14339960, 28679920]

約数ペア:

[(1, 28679920), (2, 14339960), (4, 7169980), (5, 5735984), (8, 3584990), (10, 2867992), (16, 1792495), (20, 1433996), (40, 716998), (80, 358499)]