85098980

素因数分解:

$2^2\times 5^1\times {\mathrm{4254949}}^1$

素因数の和:4254958

約数の個数: 12

約数和(自身を含む): 178707900

約数和(自身を除く): 93608920

約数列:

[1, 2, 4, 5, 10, 20, 4254949, 8509898, 17019796, 21274745, 42549490, 85098980]

約数ペア:

[(1, 85098980), (2, 42549490), (4, 21274745), (5, 17019796), (10, 8509898), (20, 4254949)]