19995505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1931}}^1$

素因数の和:2064

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 5506895

約数列:

[1, 5, 19, 95, 109, 545, 1931, 2071, 9655, 10355, 36689, 183445, 210479, 1052395, 3999101, 19995505]

約数ペア:

[(1, 19995505), (5, 3999101), (19, 1052395), (95, 210479), (109, 183445), (545, 36689), (1931, 10355), (2071, 9655)]