20440764

素因数分解:

$2^2\times 3^2\times {\mathrm{661}}^1\times {\mathrm{859}}^1$

素因数の和:1530

約数の個数: 36

約数和(自身を含む): 51808120

約数和(自身を除く): 31367356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 661, 859, 1322, 1718, 1983, 2577, 2644, 3436, 3966, 5154, 5949, 7731, 7932, 10308, 11898, 15462, 23796, 30924, 567799, 1135598, 1703397, 2271196, 3406794, 5110191, 6813588, 10220382, 20440764]

約数ペア:

[(1, 20440764), (2, 10220382), (3, 6813588), (4, 5110191), (6, 3406794), (9, 2271196), (12, 1703397), (18, 1135598), (36, 567799), (661, 30924), (859, 23796), (1322, 15462), (1718, 11898), (1983, 10308), (2577, 7932), (2644, 7731), (3436, 5949), (3966, 5154)]