1223755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 1610784

約数和(自身を除く): 387029

約数列:

[1, 5, 13, 65, 67, 281, 335, 871, 1405, 3653, 4355, 18265, 18827, 94135, 244751, 1223755]

約数ペア:

[(1, 1223755), (5, 244751), (13, 94135), (65, 18827), (67, 18265), (281, 4355), (335, 3653), (871, 1405)]