90145420

素因数分解:

$2^2\times 5^1\times {\mathrm{1901}}^1\times {\mathrm{2371}}^1$

素因数の和:4281

約数の個数: 24

約数和(自身を含む): 189484848

約数和(自身を除く): 99339428

約数列:

[1, 2, 4, 5, 10, 20, 1901, 2371, 3802, 4742, 7604, 9484, 9505, 11855, 19010, 23710, 38020, 47420, 4507271, 9014542, 18029084, 22536355, 45072710, 90145420]

約数ペア:

[(1, 90145420), (2, 45072710), (4, 22536355), (5, 18029084), (10, 9014542), (20, 4507271), (1901, 47420), (2371, 38020), (3802, 23710), (4742, 19010), (7604, 11855), (9484, 9505)]