39843640

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2269}}^1$

素因数の和:2719

約数の個数: 32

約数和(自身を含む): 89892000

約数和(自身を除く): 50048360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 2269, 3512, 4390, 4538, 8780, 9076, 11345, 17560, 18152, 22690, 45380, 90760, 996091, 1992182, 3984364, 4980455, 7968728, 9960910, 19921820, 39843640]

約数ペア:

[(1, 39843640), (2, 19921820), (4, 9960910), (5, 7968728), (8, 4980455), (10, 3984364), (20, 1992182), (40, 996091), (439, 90760), (878, 45380), (1756, 22690), (2195, 18152), (2269, 17560), (3512, 11345), (4390, 9076), (4538, 8780)]