2787265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 3639888

約数和(自身を除く): 852623

約数列:

[1, 5, 13, 65, 137, 313, 685, 1565, 1781, 4069, 8905, 20345, 42881, 214405, 557453, 2787265]

約数ペア:

[(1, 2787265), (5, 557453), (13, 214405), (65, 42881), (137, 20345), (313, 8905), (685, 4069), (1565, 1781)]