278340945

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{261353}}^1$

素因数の和:261432

約数の個数: 16

約数和(自身を含む): 451619712

約数和(自身を除く): 173278767

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 261353, 784059, 1306765, 3920295, 18556063, 55668189, 92780315, 278340945]

約数ペア:

[(1, 278340945), (3, 92780315), (5, 55668189), (15, 18556063), (71, 3920295), (213, 1306765), (355, 784059), (1065, 261353)]