20005400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4349}}^1$

素因数の和:4388

約数の個数: 48

約数和(自身を含む): 48546000

約数和(自身を除く): 28540600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4349, 4600, 8698, 17396, 21745, 34792, 43490, 86980, 100027, 108725, 173960, 200054, 217450, 400108, 434900, 500135, 800216, 869800, 1000270, 2000540, 2500675, 4001080, 5001350, 10002700, 20005400]

約数ペア:

[(1, 20005400), (2, 10002700), (4, 5001350), (5, 4001080), (8, 2500675), (10, 2000540), (20, 1000270), (23, 869800), (25, 800216), (40, 500135), (46, 434900), (50, 400108), (92, 217450), (100, 200054), (115, 173960), (184, 108725), (200, 100027), (230, 86980), (460, 43490), (575, 34792), (920, 21745), (1150, 17396), (2300, 8698), (4349, 4600)]