18996580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49991}}^1$

素因数の和:50019

約数の個数: 24

約数和(自身を含む): 41993280

約数和(自身を除く): 22996700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49991, 99982, 199964, 249955, 499910, 949829, 999820, 1899658, 3799316, 4749145, 9498290, 18996580]

約数ペア:

[(1, 18996580), (2, 9498290), (4, 4749145), (5, 3799316), (10, 1899658), (19, 999820), (20, 949829), (38, 499910), (76, 249955), (95, 199964), (190, 99982), (380, 49991)]