20572790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1061}}^1$

素因数の和:1352

約数の個数: 32

約数和(自身を含む): 42513984

約数和(自身を除く): 21941194

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 277, 554, 1061, 1385, 1939, 2122, 2770, 3878, 5305, 7427, 9695, 10610, 14854, 19390, 37135, 74270, 293897, 587794, 1469485, 2057279, 2938970, 4114558, 10286395, 20572790]

約数ペア:

[(1, 20572790), (2, 10286395), (5, 4114558), (7, 2938970), (10, 2057279), (14, 1469485), (35, 587794), (70, 293897), (277, 74270), (554, 37135), (1061, 19390), (1385, 14854), (1939, 10610), (2122, 9695), (2770, 7427), (3878, 5305)]