408752020

素因数分解:

$2^2\times 5^1\times {\mathrm{3217}}^1\times {\mathrm{6353}}^1$

素因数の和:9579

約数の個数: 24

約数和(自身を含む): 858781224

約数和(自身を除く): 450029204

約数列:

[1, 2, 4, 5, 10, 20, 3217, 6353, 6434, 12706, 12868, 16085, 25412, 31765, 32170, 63530, 64340, 127060, 20437601, 40875202, 81750404, 102188005, 204376010, 408752020]

約数ペア:

[(1, 408752020), (2, 204376010), (4, 102188005), (5, 81750404), (10, 40875202), (20, 20437601), (3217, 127060), (6353, 64340), (6434, 63530), (12706, 32170), (12868, 31765), (16085, 25412)]