61818680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20071}}^1$

素因数の和:20100

約数の個数: 64

約数和(自身を含む): 173422080

約数和(自身を除く): 111603400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 20071, 40142, 80284, 100355, 140497, 160568, 200710, 220781, 280994, 401420, 441562, 561988, 702485, 802840, 883124, 1103905, 1123976, 1404970, 1545467, 1766248, 2207810, 2809940, 3090934, 4415620, 5619880, 6181868, 7727335, 8831240, 12363736, 15454670, 30909340, 61818680]

約数ペア:

[(1, 61818680), (2, 30909340), (4, 15454670), (5, 12363736), (7, 8831240), (8, 7727335), (10, 6181868), (11, 5619880), (14, 4415620), (20, 3090934), (22, 2809940), (28, 2207810), (35, 1766248), (40, 1545467), (44, 1404970), (55, 1123976), (56, 1103905), (70, 883124), (77, 802840), (88, 702485), (110, 561988), (140, 441562), (154, 401420), (220, 280994), (280, 220781), (308, 200710), (385, 160568), (440, 140497), (616, 100355), (770, 80284), (1540, 40142), (3080, 20071)]