19340420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87911}}^1$

素因数の和:87931

約数の個数: 24

約数和(自身を含む): 44307648

約数和(自身を除く): 24967228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87911, 175822, 351644, 439555, 879110, 967021, 1758220, 1934042, 3868084, 4835105, 9670210, 19340420]

約数ペア:

[(1, 19340420), (2, 9670210), (4, 4835105), (5, 3868084), (10, 1934042), (11, 1758220), (20, 967021), (22, 879110), (44, 439555), (55, 351644), (110, 175822), (220, 87911)]