220116580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{123661}}^1$

素因数の和:123759

約数の個数: 24

約数和(自身を含む): 467442360

約数和(自身を除く): 247325780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 123661, 247322, 494644, 618305, 1236610, 2473220, 11005829, 22011658, 44023316, 55029145, 110058290, 220116580]

約数ペア:

[(1, 220116580), (2, 110058290), (4, 55029145), (5, 44023316), (10, 22011658), (20, 11005829), (89, 2473220), (178, 1236610), (356, 618305), (445, 494644), (890, 247322), (1780, 123661)]