90721865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73459}}^1$

素因数の和:73496

約数の個数: 16

約数和(自身を含む): 123412800

約数和(自身を除く): 32690935

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 73459, 367295, 954967, 1395721, 4774835, 6978605, 18144373, 90721865]

約数ペア:

[(1, 90721865), (5, 18144373), (13, 6978605), (19, 4774835), (65, 1395721), (95, 954967), (247, 367295), (1235, 73459)]