208963640

素因数分解:

$2^3\times 5^1\times {\mathrm{733}}^1\times {\mathrm{7127}}^1$

素因数の和:7871

約数の個数: 32

約数和(自身を含む): 470875680

約数和(自身を除く): 261912040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 733, 1466, 2932, 3665, 5864, 7127, 7330, 14254, 14660, 28508, 29320, 35635, 57016, 71270, 142540, 285080, 5224091, 10448182, 20896364, 26120455, 41792728, 52240910, 104481820, 208963640]

約数ペア:

[(1, 208963640), (2, 104481820), (4, 52240910), (5, 41792728), (8, 26120455), (10, 20896364), (20, 10448182), (40, 5224091), (733, 285080), (1466, 142540), (2932, 71270), (3665, 57016), (5864, 35635), (7127, 29320), (7330, 28508), (14254, 14660)]