20597008

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{5009}}^1$

素因数の和:5274

約数の個数: 20

約数和(自身を含む): 40069980

約数和(自身を除く): 19472972

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 5009, 10018, 20036, 40072, 80144, 1287313, 2574626, 5149252, 10298504, 20597008]

約数ペア:

[(1, 20597008), (2, 10298504), (4, 5149252), (8, 2574626), (16, 1287313), (257, 80144), (514, 40072), (1028, 20036), (2056, 10018), (4112, 5009)]