20120980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91459}}^1$

素因数の和:91479

約数の個数: 24

約数和(自身を含む): 46095840

約数和(自身を除く): 25974860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91459, 182918, 365836, 457295, 914590, 1006049, 1829180, 2012098, 4024196, 5030245, 10060490, 20120980]

約数ペア:

[(1, 20120980), (2, 10060490), (4, 5030245), (5, 4024196), (10, 2012098), (11, 1829180), (20, 1006049), (22, 914590), (44, 457295), (55, 365836), (110, 182918), (220, 91459)]