20646020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24007}}^1$

素因数の和:24059

約数の個数: 24

約数和(自身を含む): 44366784

約数和(自身を除く): 23720764

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24007, 48014, 96028, 120035, 240070, 480140, 1032301, 2064602, 4129204, 5161505, 10323010, 20646020]

約数ペア:

[(1, 20646020), (2, 10323010), (4, 5161505), (5, 4129204), (10, 2064602), (20, 1032301), (43, 480140), (86, 240070), (172, 120035), (215, 96028), (430, 48014), (860, 24007)]