27440020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31907}}^1$

素因数の和:31959

約数の個数: 24

約数和(自身を含む): 58965984

約数和(自身を除く): 31525964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 31907, 63814, 127628, 159535, 319070, 638140, 1372001, 2744002, 5488004, 6860005, 13720010, 27440020]

約数ペア:

[(1, 27440020), (2, 13720010), (4, 6860005), (5, 5488004), (10, 2744002), (20, 1372001), (43, 638140), (86, 319070), (172, 159535), (215, 127628), (430, 63814), (860, 31907)]