18887185

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 23328000

約数和(自身を除く): 4440815

約数列:

[1, 5, 47, 179, 235, 449, 895, 2245, 8413, 21103, 42065, 80371, 105515, 401855, 3777437, 18887185]

約数ペア:

[(1, 18887185), (5, 3777437), (47, 401855), (179, 105515), (235, 80371), (449, 42065), (895, 21103), (2245, 8413)]