20208955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4259}}^1$

素因数の和:4350

約数の個数: 16

約数和(自身を含む): 26480160

約数和(自身を除く): 6271205

約数列:

[1, 5, 13, 65, 73, 365, 949, 4259, 4745, 21295, 55367, 276835, 310907, 1554535, 4041791, 20208955]

約数ペア:

[(1, 20208955), (5, 4041791), (13, 1554535), (65, 310907), (73, 276835), (365, 55367), (949, 21295), (4259, 4745)]