20096980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9949}}^1$

素因数の和:10059

約数の個数: 24

約数和(自身を含む): 42625800

約数和(自身を除く): 22528820

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9949, 19898, 39796, 49745, 99490, 198980, 1004849, 2009698, 4019396, 5024245, 10048490, 20096980]

約数ペア:

[(1, 20096980), (2, 10048490), (4, 5024245), (5, 4019396), (10, 2009698), (20, 1004849), (101, 198980), (202, 99490), (404, 49745), (505, 39796), (1010, 19898), (2020, 9949)]