28242865

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6781}}^1$

素因数の和:6817

約数の個数: 24

約数和(自身を含む): 41749992

約数和(自身を除く): 13507127

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 6781, 33905, 47467, 115277, 237335, 332269, 576385, 806939, 1661345, 4034695, 5648573, 28242865]

約数ペア:

[(1, 28242865), (5, 5648573), (7, 4034695), (17, 1661345), (35, 806939), (49, 576385), (85, 332269), (119, 237335), (245, 115277), (595, 47467), (833, 33905), (4165, 6781)]