20450815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{439}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 30919680

約数和(自身を除く): 10468865

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 439, 605, 847, 1331, 2195, 3073, 4235, 4829, 6655, 9317, 15365, 24145, 33803, 46585, 53119, 169015, 265595, 371833, 584309, 1859165, 2921545, 4090163, 20450815]

約数ペア:

[(1, 20450815), (5, 4090163), (7, 2921545), (11, 1859165), (35, 584309), (55, 371833), (77, 265595), (121, 169015), (385, 53119), (439, 46585), (605, 33803), (847, 24145), (1331, 15365), (2195, 9317), (3073, 6655), (4235, 4829)]