20816950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5407}}^1$

素因数の和:5437

約数の個数: 48

約数和(自身を含む): 48282624

約数和(自身を除く): 27465674

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5407, 10814, 27035, 37849, 54070, 59477, 75698, 118954, 135175, 189245, 270350, 297385, 378490, 416339, 594770, 832678, 946225, 1486925, 1892450, 2081695, 2973850, 4163390, 10408475, 20816950]

約数ペア:

[(1, 20816950), (2, 10408475), (5, 4163390), (7, 2973850), (10, 2081695), (11, 1892450), (14, 1486925), (22, 946225), (25, 832678), (35, 594770), (50, 416339), (55, 378490), (70, 297385), (77, 270350), (110, 189245), (154, 135175), (175, 118954), (275, 75698), (350, 59477), (385, 54070), (550, 37849), (770, 27035), (1925, 10814), (3850, 5407)]