19943960

素因数分解:

$2^3\times 5^1\times {\mathrm{498599}}^1$

素因数の和:498610

約数の個数: 16

約数和(自身を含む): 44874000

約数和(自身を除く): 24930040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498599, 997198, 1994396, 2492995, 3988792, 4985990, 9971980, 19943960]

約数ペア:

[(1, 19943960), (2, 9971980), (4, 4985990), (5, 3988792), (8, 2492995), (10, 1994396), (20, 997198), (40, 498599)]