78272690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{190909}}^1$

素因数の和:190957

約数の個数: 16

約数和(自身を含む): 144327960

約数和(自身を除く): 66055270

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 190909, 381818, 954545, 1909090, 7827269, 15654538, 39136345, 78272690]

約数ペア:

[(1, 78272690), (2, 39136345), (5, 15654538), (10, 7827269), (41, 1909090), (82, 954545), (205, 381818), (410, 190909)]