20207480

素因数分解:

$2^3\times 5^1\times {\mathrm{505187}}^1$

素因数の和:505198

約数の個数: 16

約数和(自身を含む): 45466920

約数和(自身を除く): 25259440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505187, 1010374, 2020748, 2525935, 4041496, 5051870, 10103740, 20207480]

約数ペア:

[(1, 20207480), (2, 10103740), (4, 5051870), (5, 4041496), (8, 2525935), (10, 2020748), (20, 1010374), (40, 505187)]