85359620

素因数分解:

$2^2\times 5^1\times {\mathrm{4267981}}^1$

素因数の和:4267990

約数の個数: 12

約数和(自身を含む): 179255244

約数和(自身を除く): 93895624

約数列:

[1, 2, 4, 5, 10, 20, 4267981, 8535962, 17071924, 21339905, 42679810, 85359620]

約数ペア:

[(1, 85359620), (2, 42679810), (4, 21339905), (5, 17071924), (10, 8535962), (20, 4267981)]