201561904

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{307259}}^1$

素因数の和:307308

約数の個数: 20

約数和(自身を含む): 400052520

約数和(自身を除く): 198490616

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 307259, 614518, 1229036, 2458072, 4916144, 12597619, 25195238, 50390476, 100780952, 201561904]

約数ペア:

[(1, 201561904), (2, 100780952), (4, 50390476), (8, 25195238), (16, 12597619), (41, 4916144), (82, 2458072), (164, 1229036), (328, 614518), (656, 307259)]