1781195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 2341920

約数和(自身を除く): 560725

約数列:

[1, 5, 13, 65, 67, 335, 409, 871, 2045, 4355, 5317, 26585, 27403, 137015, 356239, 1781195]

約数ペア:

[(1, 1781195), (5, 356239), (13, 137015), (65, 27403), (67, 26585), (335, 5317), (409, 4355), (871, 2045)]