208964540

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{9829}}^1$

素因数の和:10901

約数の個数: 24

約数和(自身を含む): 439283040

約数和(自身を除く): 230318500

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315, 9829, 10630, 19658, 21260, 39316, 49145, 98290, 196580, 10448227, 20896454, 41792908, 52241135, 104482270, 208964540]

約数ペア:

[(1, 208964540), (2, 104482270), (4, 52241135), (5, 41792908), (10, 20896454), (20, 10448227), (1063, 196580), (2126, 98290), (4252, 49145), (5315, 39316), (9829, 21260), (10630, 19658)]