1293335810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{320927}}^1$

素因数の和:320978

約数の個数: 32

約数和(自身を含む): 2587963392

約数和(自身を除く): 1294627582

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 320927, 641854, 1604635, 3209270, 4172051, 8344102, 9948737, 19897474, 20860255, 41720510, 49743685, 99487370, 129333581, 258667162, 646667905, 1293335810]

約数ペア:

[(1, 1293335810), (2, 646667905), (5, 258667162), (10, 129333581), (13, 99487370), (26, 49743685), (31, 41720510), (62, 20860255), (65, 19897474), (130, 9948737), (155, 8344102), (310, 4172051), (403, 3209270), (806, 1604635), (2015, 641854), (4030, 320927)]