20290712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{195103}}^1$

素因数の和:195122

約数の個数: 16

約数和(自身を含む): 40971840

約数和(自身を除く): 20681128

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 195103, 390206, 780412, 1560824, 2536339, 5072678, 10145356, 20290712]

約数ペア:

[(1, 20290712), (2, 10145356), (4, 5072678), (8, 2536339), (13, 1560824), (26, 780412), (52, 390206), (104, 195103)]