20777220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115429}}^1$

素因数の和:115444

約数の個数: 36

約数和(自身を含む): 63024780

約数和(自身を除く): 42247560

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115429, 230858, 346287, 461716, 577145, 692574, 1038861, 1154290, 1385148, 1731435, 2077722, 2308580, 3462870, 4155444, 5194305, 6925740, 10388610, 20777220]

約数ペア:

[(1, 20777220), (2, 10388610), (3, 6925740), (4, 5194305), (5, 4155444), (6, 3462870), (9, 2308580), (10, 2077722), (12, 1731435), (15, 1385148), (18, 1154290), (20, 1038861), (30, 692574), (36, 577145), (45, 461716), (60, 346287), (90, 230858), (180, 115429)]