2080394980

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{204361}}^1$

素因数の和:204879

約数の個数: 24

約数和(自身を含む): 4377434040

約数和(自身を除く): 2297039060

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 204361, 408722, 817444, 1021805, 2043610, 4087220, 104019749, 208039498, 416078996, 520098745, 1040197490, 2080394980]

約数ペア:

[(1, 2080394980), (2, 1040197490), (4, 520098745), (5, 416078996), (10, 208039498), (20, 104019749), (509, 4087220), (1018, 2043610), (2036, 1021805), (2545, 817444), (5090, 408722), (10180, 204361)]