80051780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36721}}^1$

素因数の和:36839

約数の個数: 24

約数和(自身を含む): 169655640

約数和(自身を除く): 89603860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36721, 73442, 146884, 183605, 367210, 734420, 4002589, 8005178, 16010356, 20012945, 40025890, 80051780]

約数ペア:

[(1, 80051780), (2, 40025890), (4, 20012945), (5, 16010356), (10, 8005178), (20, 4002589), (109, 734420), (218, 367210), (436, 183605), (545, 146884), (1090, 73442), (2180, 36721)]