2560779

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 4084080

約数和(自身を除く): 1523301

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 509, 559, 1527, 1677, 4581, 5031, 6617, 19851, 21887, 59553, 65661, 196983, 284531, 853593, 2560779]

約数ペア:

[(1, 2560779), (3, 853593), (9, 284531), (13, 196983), (39, 65661), (43, 59553), (117, 21887), (129, 19851), (387, 6617), (509, 5031), (559, 4581), (1527, 1677)]