20808515525

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6994459}}^1$

素因数の和:6994493

約数の個数: 24

約数和(自身を含む): 31223269440

約数和(自身を除く): 10414753915

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 6994459, 34972295, 48961213, 118905803, 174861475, 244806065, 594529015, 832340621, 1224030325, 2972645075, 4161703105, 20808515525]

約数ペア:

[(1, 20808515525), (5, 4161703105), (7, 2972645075), (17, 1224030325), (25, 832340621), (35, 594529015), (85, 244806065), (119, 174861475), (175, 118905803), (425, 48961213), (595, 34972295), (2975, 6994459)]