20195588

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5189}}^1$

素因数の和:5339

約数の個数: 24

約数和(自身を含む): 40689600

約数和(自身を除く): 20494012

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5189, 10378, 20756, 36323, 72646, 145292, 721271, 1442542, 2885084, 5048897, 10097794, 20195588]

約数ペア:

[(1, 20195588), (2, 10097794), (4, 5048897), (7, 2885084), (14, 1442542), (28, 721271), (139, 145292), (278, 72646), (556, 36323), (973, 20756), (1946, 10378), (3892, 5189)]