138709340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90071}}^1$

素因数の和:90098

約数の個数: 48

約数和(自身を含む): 363170304

約数和(自身を除く): 224460964

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, 90071, 180142, 360284, 450355, 630497, 900710, 990781, 1260994, 1801420, 1981562, 2521988, 3152485, 3963124, 4953905, 6304970, 6935467, 9907810, 12609940, 13870934, 19815620, 27741868, 34677335, 69354670, 138709340]

約数ペア:

[(1, 138709340), (2, 69354670), (4, 34677335), (5, 27741868), (7, 19815620), (10, 13870934), (11, 12609940), (14, 9907810), (20, 6935467), (22, 6304970), (28, 4953905), (35, 3963124), (44, 3152485), (55, 2521988), (70, 1981562), (77, 1801420), (110, 1260994), (140, 990781), (154, 900710), (220, 630497), (308, 450355), (385, 360284), (770, 180142), (1540, 90071)]