20690780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94049}}^1$

素因数の和:94069

約数の個数: 24

約数和(自身を含む): 47401200

約数和(自身を除く): 26710420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94049, 188098, 376196, 470245, 940490, 1034539, 1880980, 2069078, 4138156, 5172695, 10345390, 20690780]

約数ペア:

[(1, 20690780), (2, 10345390), (4, 5172695), (5, 4138156), (10, 2069078), (11, 1880980), (20, 1034539), (22, 940490), (44, 470245), (55, 376196), (110, 188098), (220, 94049)]