20290970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{289871}}^1$

素因数の和:289885

約数の個数: 16

約数和(自身を含む): 41741568

約数和(自身を除く): 21450598

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 289871, 579742, 1449355, 2029097, 2898710, 4058194, 10145485, 20290970]

約数ペア:

[(1, 20290970), (2, 10145485), (5, 4058194), (7, 2898710), (10, 2029097), (14, 1449355), (35, 579742), (70, 289871)]