28921885

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 35493120

約数和(自身を除く): 6571235

約数列:

[1, 5, 89, 103, 445, 515, 631, 3155, 9167, 45835, 56159, 64993, 280795, 324965, 5784377, 28921885]

約数ペア:

[(1, 28921885), (5, 5784377), (89, 324965), (103, 280795), (445, 64993), (515, 56159), (631, 45835), (3155, 9167)]