20178385940

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{553439}}^1$

素因数の和:555271

約数の個数: 24

約数和(自身を含む): 42397931520

約数和(自身を除く): 22219545580

約数列:

[1, 2, 4, 5, 10, 20, 1823, 3646, 7292, 9115, 18230, 36460, 553439, 1106878, 2213756, 2767195, 5534390, 11068780, 1008919297, 2017838594, 4035677188, 5044596485, 10089192970, 20178385940]

約数ペア:

[(1, 20178385940), (2, 10089192970), (4, 5044596485), (5, 4035677188), (10, 2017838594), (20, 1008919297), (1823, 11068780), (3646, 5534390), (7292, 2767195), (9115, 2213756), (18230, 1106878), (36460, 553439)]