81360645

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{42709}}^1$

素因数の和:42844

約数の個数: 16

約数和(自身を含む): 131205120

約数和(自身を除く): 49844475

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 42709, 128127, 213545, 640635, 5424043, 16272129, 27120215, 81360645]

約数ペア:

[(1, 81360645), (3, 27120215), (5, 16272129), (15, 5424043), (127, 640635), (381, 213545), (635, 128127), (1905, 42709)]