20585420

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3637}}^1$

素因数の和:3929

約数の個数: 24

約数和(自身を含む): 43394064

約数和(自身を除く): 22808644

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3637, 5660, 7274, 14548, 18185, 36370, 72740, 1029271, 2058542, 4117084, 5146355, 10292710, 20585420]

約数ペア:

[(1, 20585420), (2, 10292710), (4, 5146355), (5, 4117084), (10, 2058542), (20, 1029271), (283, 72740), (566, 36370), (1132, 18185), (1415, 14548), (2830, 7274), (3637, 5660)]