20792560

素因数分解:

$2^4\times 5^1\times {\mathrm{259907}}^1$

素因数の和:259920

約数の個数: 20

約数和(自身を含む): 48342888

約数和(自身を除く): 27550328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 259907, 519814, 1039628, 1299535, 2079256, 2599070, 4158512, 5198140, 10396280, 20792560]

約数ペア:

[(1, 20792560), (2, 10396280), (4, 5198140), (5, 4158512), (8, 2599070), (10, 2079256), (16, 1299535), (20, 1039628), (40, 519814), (80, 259907)]