1105960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 2550240

約数和(自身を除く): 1444280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 643, 860, 1286, 1720, 2572, 3215, 5144, 6430, 12860, 25720, 27649, 55298, 110596, 138245, 221192, 276490, 552980, 1105960]

約数ペア:

[(1, 1105960), (2, 552980), (4, 276490), (5, 221192), (8, 138245), (10, 110596), (20, 55298), (40, 27649), (43, 25720), (86, 12860), (172, 6430), (215, 5144), (344, 3215), (430, 2572), (643, 1720), (860, 1286)]