254382020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{116689}}^1$

素因数の和:116807

約数の個数: 24

約数和(自身を含む): 539107800

約数和(自身を除く): 284725780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 116689, 233378, 466756, 583445, 1166890, 2333780, 12719101, 25438202, 50876404, 63595505, 127191010, 254382020]

約数ペア:

[(1, 254382020), (2, 127191010), (4, 63595505), (5, 50876404), (10, 25438202), (20, 12719101), (109, 2333780), (218, 1166890), (436, 583445), (545, 466756), (1090, 233378), (2180, 116689)]