2800265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 3678528

約数和(自身を除く): 878263

約数列:

[1, 5, 13, 65, 67, 335, 643, 871, 3215, 4355, 8359, 41795, 43081, 215405, 560053, 2800265]

約数ペア:

[(1, 2800265), (5, 560053), (13, 215405), (65, 43081), (67, 41795), (335, 8359), (643, 4355), (871, 3215)]