20204975

素因数分解:

$5^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 28807680

約数和(自身を除く): 8602705

約数列:

[1, 5, 7, 25, 35, 175, 263, 439, 1315, 1841, 2195, 3073, 6575, 9205, 10975, 15365, 46025, 76825, 115457, 577285, 808199, 2886425, 4040995, 20204975]

約数ペア:

[(1, 20204975), (5, 4040995), (7, 2886425), (25, 808199), (35, 577285), (175, 115457), (263, 76825), (439, 46025), (1315, 15365), (1841, 10975), (2195, 9205), (3073, 6575)]