12122780

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1949}}^1$

素因数の和:2269

約数の個数: 24

約数和(自身を含む): 25552800

約数和(自身を除く): 13430020

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 1949, 3110, 3898, 6220, 7796, 9745, 19490, 38980, 606139, 1212278, 2424556, 3030695, 6061390, 12122780]

約数ペア:

[(1, 12122780), (2, 6061390), (4, 3030695), (5, 2424556), (10, 1212278), (20, 606139), (311, 38980), (622, 19490), (1244, 9745), (1555, 7796), (1949, 6220), (3110, 3898)]