680940819

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{135349}}^1$

素因数の和:135411

約数の個数: 24

約数和(自身を含む): 1083882800

約数和(自身を除く): 402941981

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 135349, 406047, 1218141, 1759537, 5278611, 5820007, 15835833, 17460021, 52380063, 75660091, 226980273, 680940819]

約数ペア:

[(1, 680940819), (3, 226980273), (9, 75660091), (13, 52380063), (39, 17460021), (43, 15835833), (117, 5820007), (129, 5278611), (387, 1759537), (559, 1218141), (1677, 406047), (5031, 135349)]