20776295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4007}}^1$

素因数の和:4090

約数の個数: 16

約数和(自身を含む): 26837568

約数和(自身を除く): 6061273

約数列:

[1, 5, 17, 61, 85, 305, 1037, 4007, 5185, 20035, 68119, 244427, 340595, 1222135, 4155259, 20776295]

約数ペア:

[(1, 20776295), (5, 4155259), (17, 1222135), (61, 340595), (85, 244427), (305, 68119), (1037, 20035), (4007, 5185)]