28984390

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{7451}}^1$

素因数の和:7847

約数の個数: 16

約数和(自身を含む): 52313040

約数和(自身を除く): 23328650

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 7451, 14902, 37255, 74510, 2898439, 5796878, 14492195, 28984390]

約数ペア:

[(1, 28984390), (2, 14492195), (5, 5796878), (10, 2898439), (389, 74510), (778, 37255), (1945, 14902), (3890, 7451)]