2188780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9949}}^1$

素因数の和:9969

約数の個数: 24

約数和(自身を含む): 5014800

約数和(自身を除く): 2826020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9949, 19898, 39796, 49745, 99490, 109439, 198980, 218878, 437756, 547195, 1094390, 2188780]

約数ペア:

[(1, 2188780), (2, 1094390), (4, 547195), (5, 437756), (10, 218878), (11, 198980), (20, 109439), (22, 99490), (44, 49745), (55, 39796), (110, 19898), (220, 9949)]