5581225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{1321}}^1$

素因数の和:1357

約数の個数: 18

約数和(自身を含む): 7499706

約数和(自身を除く): 1918481

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 1321, 4225, 6605, 17173, 33025, 85865, 223249, 429325, 1116245, 5581225]

約数ペア:

[(1, 5581225), (5, 1116245), (13, 429325), (25, 223249), (65, 85865), (169, 33025), (325, 17173), (845, 6605), (1321, 4225)]