80831560

素因数分解:

$2^3\times 5^1\times {\mathrm{2020789}}^1$

素因数の和:2020800

約数の個数: 16

約数和(自身を含む): 181871100

約数和(自身を除く): 101039540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2020789, 4041578, 8083156, 10103945, 16166312, 20207890, 40415780, 80831560]

約数ペア:

[(1, 80831560), (2, 40415780), (4, 20207890), (5, 16166312), (8, 10103945), (10, 8083156), (20, 4041578), (40, 2020789)]