198716680

素因数分解:

$2^3\times 5^1\times {\mathrm{4967917}}^1$

素因数の和:4967928

約数の個数: 16

約数和(自身を含む): 447112620

約数和(自身を除く): 248395940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4967917, 9935834, 19871668, 24839585, 39743336, 49679170, 99358340, 198716680]

約数ペア:

[(1, 198716680), (2, 99358340), (4, 49679170), (5, 39743336), (8, 24839585), (10, 19871668), (20, 9935834), (40, 4967917)]