19492040840

素因数分解:

$2^3\times 5^1\times {\mathrm{487301021}}^1$

素因数の和:487301032

約数の個数: 16

約数和(自身を含む): 43857091980

約数和(自身を除く): 24365051140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487301021, 974602042, 1949204084, 2436505105, 3898408168, 4873010210, 9746020420, 19492040840]

約数ペア:

[(1, 19492040840), (2, 9746020420), (4, 4873010210), (5, 3898408168), (8, 2436505105), (10, 1949204084), (20, 974602042), (40, 487301021)]