2605905

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 4704000

約数和(自身を除く): 2098095

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 199, 291, 485, 597, 873, 995, 1455, 1791, 2619, 2985, 4365, 5373, 8955, 13095, 19303, 26865, 57909, 96515, 173727, 289545, 521181, 868635, 2605905]

約数ペア:

[(1, 2605905), (3, 868635), (5, 521181), (9, 289545), (15, 173727), (27, 96515), (45, 57909), (97, 26865), (135, 19303), (199, 13095), (291, 8955), (485, 5373), (597, 4365), (873, 2985), (995, 2619), (1455, 1791)]