209946896

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{320041}}^1$

素因数の和:320090

約数の個数: 20

約数和(自身を含む): 416694684

約数和(自身を除く): 206747788

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 320041, 640082, 1280164, 2560328, 5120656, 13121681, 26243362, 52486724, 104973448, 209946896]

約数ペア:

[(1, 209946896), (2, 104973448), (4, 52486724), (8, 26243362), (16, 13121681), (41, 5120656), (82, 2560328), (164, 1280164), (328, 640082), (656, 320041)]