20631590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6271}}^1$

素因数の和:6332

約数の個数: 32

約数和(自身を含む): 43352064

約数和(自身を除く): 22720474

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 329, 470, 658, 1645, 3290, 6271, 12542, 31355, 43897, 62710, 87794, 219485, 294737, 438970, 589474, 1473685, 2063159, 2947370, 4126318, 10315795, 20631590]

約数ペア:

[(1, 20631590), (2, 10315795), (5, 4126318), (7, 2947370), (10, 2063159), (14, 1473685), (35, 589474), (47, 438970), (70, 294737), (94, 219485), (235, 87794), (329, 62710), (470, 43897), (658, 31355), (1645, 12542), (3290, 6271)]