19803790

素因数分解:

$2^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2027}}^1$

素因数の和:3011

約数の個数: 16

約数和(自身を含む): 35700912

約数和(自身を除く): 15897122

約数列:

[1, 2, 5, 10, 977, 1954, 2027, 4054, 4885, 9770, 10135, 20270, 1980379, 3960758, 9901895, 19803790]

約数ペア:

[(1, 19803790), (2, 9901895), (5, 3960758), (10, 1980379), (977, 20270), (1954, 10135), (2027, 9770), (4054, 4885)]