81322545

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{42689}}^1$

素因数の和:42824

約数の個数: 16

約数和(自身を含む): 131143680

約数和(自身を除く): 49821135

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 42689, 128067, 213445, 640335, 5421503, 16264509, 27107515, 81322545]

約数ペア:

[(1, 81322545), (3, 27107515), (5, 16264509), (15, 5421503), (127, 640335), (381, 213445), (635, 128067), (1905, 42689)]