20244842140

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1574249}}^1$

素因数の和:1574901

約数の個数: 24

約数和(自身を含む): 42580314000

約数和(自身を除く): 22335471860

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 1574249, 3148498, 6296996, 7871245, 15742490, 31484980, 1012242107, 2024484214, 4048968428, 5061210535, 10122421070, 20244842140]

約数ペア:

[(1, 20244842140), (2, 10122421070), (4, 5061210535), (5, 4048968428), (10, 2024484214), (20, 1012242107), (643, 31484980), (1286, 15742490), (2572, 7871245), (3215, 6296996), (6430, 3148498), (12860, 1574249)]