1690205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 16

約数和(自身を含む): 2246400

約数和(自身を除く): 556195

約数列:

[1, 5, 11, 55, 79, 389, 395, 869, 1945, 4279, 4345, 21395, 30731, 153655, 338041, 1690205]

約数ペア:

[(1, 1690205), (5, 338041), (11, 153655), (55, 30731), (79, 21395), (389, 4345), (395, 4279), (869, 1945)]