39139280

素因数分解:

$2^4\times 5^1\times {\mathrm{489241}}^1$

素因数の和:489254

約数の個数: 20

約数和(自身を含む): 90999012

約数和(自身を除く): 51859732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 489241, 978482, 1956964, 2446205, 3913928, 4892410, 7827856, 9784820, 19569640, 39139280]

約数ペア:

[(1, 39139280), (2, 19569640), (4, 9784820), (5, 7827856), (8, 4892410), (10, 3913928), (16, 2446205), (20, 1956964), (40, 978482), (80, 489241)]