220195580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1000889}}^1$

素因数の和:1000909

約数の個数: 24

約数和(自身を含む): 504448560

約数和(自身を除く): 284252980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1000889, 2001778, 4003556, 5004445, 10008890, 11009779, 20017780, 22019558, 44039116, 55048895, 110097790, 220195580]

約数ペア:

[(1, 220195580), (2, 110097790), (4, 55048895), (5, 44039116), (10, 22019558), (11, 20017780), (20, 11009779), (22, 10008890), (44, 5004445), (55, 4003556), (110, 2001778), (220, 1000889)]