20358260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78301}}^1$

素因数の和:78323

約数の個数: 24

約数和(自身を含む): 46041576

約数和(自身を除く): 25683316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78301, 156602, 313204, 391505, 783010, 1017913, 1566020, 2035826, 4071652, 5089565, 10179130, 20358260]

約数ペア:

[(1, 20358260), (2, 10179130), (4, 5089565), (5, 4071652), (10, 2035826), (13, 1566020), (20, 1017913), (26, 783010), (52, 391505), (65, 313204), (130, 156602), (260, 78301)]