8640945

素因数分解:

$3^3\times 5^1\times {\mathrm{64007}}^1$

素因数の和:64021

約数の個数: 16

約数和(自身を含む): 15361920

約数和(自身を除く): 6720975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 64007, 192021, 320035, 576063, 960105, 1728189, 2880315, 8640945]

約数ペア:

[(1, 8640945), (3, 2880315), (5, 1728189), (9, 960105), (15, 576063), (27, 320035), (45, 192021), (135, 64007)]