20845260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115807}}^1$

素因数の和:115822

約数の個数: 36

約数和(自身を含む): 63231168

約数和(自身を除く): 42385908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115807, 231614, 347421, 463228, 579035, 694842, 1042263, 1158070, 1389684, 1737105, 2084526, 2316140, 3474210, 4169052, 5211315, 6948420, 10422630, 20845260]

約数ペア:

[(1, 20845260), (2, 10422630), (3, 6948420), (4, 5211315), (5, 4169052), (6, 3474210), (9, 2316140), (10, 2084526), (12, 1737105), (15, 1389684), (18, 1158070), (20, 1042263), (30, 694842), (36, 579035), (45, 463228), (60, 347421), (90, 231614), (180, 115807)]