21240160

素因数分解:

$2^5\times 5^1\times {\mathrm{132751}}^1$

素因数の和:132766

約数の個数: 24

約数和(自身を含む): 50180256

約数和(自身を除く): 28940096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132751, 265502, 531004, 663755, 1062008, 1327510, 2124016, 2655020, 4248032, 5310040, 10620080, 21240160]

約数ペア:

[(1, 21240160), (2, 10620080), (4, 5310040), (5, 4248032), (8, 2655020), (10, 2124016), (16, 1327510), (20, 1062008), (32, 663755), (40, 531004), (80, 265502), (160, 132751)]