2640365

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{829}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 3974040

約数和(自身を除く): 1333675

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 829, 3185, 4145, 5803, 10777, 29015, 40621, 53885, 75439, 203105, 377195, 528073, 2640365]

約数ペア:

[(1, 2640365), (5, 528073), (7, 377195), (13, 203105), (35, 75439), (49, 53885), (65, 40621), (91, 29015), (245, 10777), (455, 5803), (637, 4145), (829, 3185)]