28439020

素因数分解:

$2^2\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1667}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 59827824

約数和(自身を除く): 31388804

約数列:

[1, 2, 4, 5, 10, 20, 853, 1667, 1706, 3334, 3412, 4265, 6668, 8335, 8530, 16670, 17060, 33340, 1421951, 2843902, 5687804, 7109755, 14219510, 28439020]

約数ペア:

[(1, 28439020), (2, 14219510), (4, 7109755), (5, 5687804), (10, 2843902), (20, 1421951), (853, 33340), (1667, 17060), (1706, 16670), (3334, 8530), (3412, 8335), (4265, 6668)]