678156945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2659439}}^1$

素因数の和:2659464

約数の個数: 16

約数和(自身を含む): 1148878080

約数和(自身を除く): 470721135

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 2659439, 7978317, 13297195, 39891585, 45210463, 135631389, 226052315, 678156945]

約数ペア:

[(1, 678156945), (3, 226052315), (5, 135631389), (15, 45210463), (17, 39891585), (51, 13297195), (85, 7978317), (255, 2659439)]