217967260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1556909}}^1$

素因数の和:1556925

約数の個数: 24

約数和(自身を含む): 523121760

約数和(自身を除く): 305154500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1556909, 3113818, 6227636, 7784545, 10898363, 15569090, 21796726, 31138180, 43593452, 54491815, 108983630, 217967260]

約数ペア:

[(1, 217967260), (2, 108983630), (4, 54491815), (5, 43593452), (7, 31138180), (10, 21796726), (14, 15569090), (20, 10898363), (28, 7784545), (35, 6227636), (70, 3113818), (140, 1556909)]