19350980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87959}}^1$

素因数の和:87979

約数の個数: 24

約数和(自身を含む): 44331840

約数和(自身を除く): 24980860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87959, 175918, 351836, 439795, 879590, 967549, 1759180, 1935098, 3870196, 4837745, 9675490, 19350980]

約数ペア:

[(1, 19350980), (2, 9675490), (4, 4837745), (5, 3870196), (10, 1935098), (11, 1759180), (20, 967549), (22, 879590), (44, 439795), (55, 351836), (110, 175918), (220, 87959)]