20205590

素因数分解:

$2^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1979}}^1$

素因数の和:3007

約数の個数: 16

約数和(自身を含む): 36424080

約数和(自身を除く): 16218490

約数列:

[1, 2, 5, 10, 1021, 1979, 2042, 3958, 5105, 9895, 10210, 19790, 2020559, 4041118, 10102795, 20205590]

約数ペア:

[(1, 20205590), (2, 10102795), (5, 4041118), (10, 2020559), (1021, 19790), (1979, 10210), (2042, 9895), (3958, 5105)]