2809940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20071}}^1$

素因数の和:20087

約数の個数: 24

約数和(自身を含む): 6744192

約数和(自身を除く): 3934252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20071, 40142, 80284, 100355, 140497, 200710, 280994, 401420, 561988, 702485, 1404970, 2809940]

約数ペア:

[(1, 2809940), (2, 1404970), (4, 702485), (5, 561988), (7, 401420), (10, 280994), (14, 200710), (20, 140497), (28, 100355), (35, 80284), (70, 40142), (140, 20071)]