200905904

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{306259}}^1$

素因数の和:306308

約数の個数: 20

約数和(自身を含む): 398750520

約数和(自身を除く): 197844616

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 306259, 612518, 1225036, 2450072, 4900144, 12556619, 25113238, 50226476, 100452952, 200905904]

約数ペア:

[(1, 200905904), (2, 100452952), (4, 50226476), (8, 25113238), (16, 12556619), (41, 4900144), (82, 2450072), (164, 1225036), (328, 612518), (656, 306259)]