20069080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4603}}^1$

素因数の和:4723

約数の個数: 32

約数和(自身を含む): 45579600

約数和(自身を除く): 25510520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4603, 9206, 18412, 23015, 36824, 46030, 92060, 184120, 501727, 1003454, 2006908, 2508635, 4013816, 5017270, 10034540, 20069080]

約数ペア:

[(1, 20069080), (2, 10034540), (4, 5017270), (5, 4013816), (8, 2508635), (10, 2006908), (20, 1003454), (40, 501727), (109, 184120), (218, 92060), (436, 46030), (545, 36824), (872, 23015), (1090, 18412), (2180, 9206), (4360, 4603)]