139405420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90523}}^1$

素因数の和:90550

約数の個数: 48

約数和(自身を含む): 364992768

約数和(自身を除く): 225587348

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, 90523, 181046, 362092, 452615, 633661, 905230, 995753, 1267322, 1810460, 1991506, 2534644, 3168305, 3983012, 4978765, 6336610, 6970271, 9957530, 12673220, 13940542, 19915060, 27881084, 34851355, 69702710, 139405420]

約数ペア:

[(1, 139405420), (2, 69702710), (4, 34851355), (5, 27881084), (7, 19915060), (10, 13940542), (11, 12673220), (14, 9957530), (20, 6970271), (22, 6336610), (28, 4978765), (35, 3983012), (44, 3168305), (55, 2534644), (70, 1991506), (77, 1810460), (110, 1267322), (140, 995753), (154, 905230), (220, 633661), (308, 452615), (385, 362092), (770, 181046), (1540, 90523)]