20161866815

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{20551}}^1$

素因数の和:21047

約数の個数: 32

約数和(自身を含む): 26635392000

約数和(自身を除く): 6473525185

約数列:

[1, 5, 19, 23, 95, 115, 437, 449, 2185, 2245, 8531, 10327, 20551, 42655, 51635, 102755, 196213, 390469, 472673, 981065, 1952345, 2363365, 8980787, 9227399, 44903935, 46136995, 175320581, 212230177, 876602905, 1061150885, 4032373363, 20161866815]

約数ペア:

[(1, 20161866815), (5, 4032373363), (19, 1061150885), (23, 876602905), (95, 212230177), (115, 175320581), (437, 46136995), (449, 44903935), (2185, 9227399), (2245, 8980787), (8531, 2363365), (10327, 1952345), (20551, 981065), (42655, 472673), (51635, 390469), (102755, 196213)]