20455165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10463}}^1$

素因数の和:10508

約数の個数: 16

約数和(自身を含む): 27122688

約数和(自身を除く): 6667523

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 10463, 52315, 177871, 240649, 889355, 1203245, 4091033, 20455165]

約数ペア:

[(1, 20455165), (5, 4091033), (17, 1203245), (23, 889355), (85, 240649), (115, 177871), (391, 52315), (1955, 10463)]