1278945

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 2247336

約数和(自身を除く): 968391

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 293, 485, 873, 879, 1455, 1465, 2637, 4365, 4395, 13185, 28421, 85263, 142105, 255789, 426315, 1278945]

約数ペア:

[(1, 1278945), (3, 426315), (5, 255789), (9, 142105), (15, 85263), (45, 28421), (97, 13185), (291, 4395), (293, 4365), (485, 2637), (873, 1465), (879, 1455)]