20041780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91099}}^1$

素因数の和:91119

約数の個数: 24

約数和(自身を含む): 45914400

約数和(自身を除く): 25872620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91099, 182198, 364396, 455495, 910990, 1002089, 1821980, 2004178, 4008356, 5010445, 10020890, 20041780]

約数ペア:

[(1, 20041780), (2, 10020890), (4, 5010445), (5, 4008356), (10, 2004178), (11, 1821980), (20, 1002089), (22, 910990), (44, 455495), (55, 364396), (110, 182198), (220, 91099)]