28007020

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{3967}}^1$

素因数の和:4329

約数の個数: 24

約数和(自身を含む): 58996224

約数和(自身を除く): 30989204

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 3967, 7060, 7934, 15868, 19835, 39670, 79340, 1400351, 2800702, 5601404, 7001755, 14003510, 28007020]

約数ペア:

[(1, 28007020), (2, 14003510), (4, 7001755), (5, 5601404), (10, 2800702), (20, 1400351), (353, 79340), (706, 39670), (1412, 19835), (1765, 15868), (3530, 7934), (3967, 7060)]