40205740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18443}}^1$

素因数の和:18561

約数の個数: 24

約数和(自身を含む): 85211280

約数和(自身を除く): 45005540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18443, 36886, 73772, 92215, 184430, 368860, 2010287, 4020574, 8041148, 10051435, 20102870, 40205740]

約数ペア:

[(1, 40205740), (2, 20102870), (4, 10051435), (5, 8041148), (10, 4020574), (20, 2010287), (109, 368860), (218, 184430), (436, 92215), (545, 73772), (1090, 36886), (2180, 18443)]