30909340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20071}}^1$

素因数の和:20098

約数の個数: 48

約数和(自身を含む): 80930304

約数和(自身を除く): 50020964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20071, 40142, 80284, 100355, 140497, 200710, 220781, 280994, 401420, 441562, 561988, 702485, 883124, 1103905, 1404970, 1545467, 2207810, 2809940, 3090934, 4415620, 6181868, 7727335, 15454670, 30909340]

約数ペア:

[(1, 30909340), (2, 15454670), (4, 7727335), (5, 6181868), (7, 4415620), (10, 3090934), (11, 2809940), (14, 2207810), (20, 1545467), (22, 1404970), (28, 1103905), (35, 883124), (44, 702485), (55, 561988), (70, 441562), (77, 401420), (110, 280994), (140, 220781), (154, 200710), (220, 140497), (308, 100355), (385, 80284), (770, 40142), (1540, 20071)]