20415080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72911}}^1$

素因数の和:72929

約数の個数: 32

約数和(自身を含む): 52496640

約数和(自身を除く): 32081560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72911, 145822, 291644, 364555, 510377, 583288, 729110, 1020754, 1458220, 2041508, 2551885, 2916440, 4083016, 5103770, 10207540, 20415080]

約数ペア:

[(1, 20415080), (2, 10207540), (4, 5103770), (5, 4083016), (7, 2916440), (8, 2551885), (10, 2041508), (14, 1458220), (20, 1020754), (28, 729110), (35, 583288), (40, 510377), (56, 364555), (70, 291644), (140, 145822), (280, 72911)]