20455504

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2239}}^1$

素因数の和:2818

約数の個数: 20

約数和(自身を含む): 39719680

約数和(自身を除く): 19264176

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2239, 2284, 4478, 4568, 8956, 9136, 17912, 35824, 1278469, 2556938, 5113876, 10227752, 20455504]

約数ペア:

[(1, 20455504), (2, 10227752), (4, 5113876), (8, 2556938), (16, 1278469), (571, 35824), (1142, 17912), (2239, 9136), (2284, 8956), (4478, 4568)]