12780578

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3779}}^1$

素因数の和:3889

約数の個数: 16

約数和(自身を含む): 20412000

約数和(自身を除く): 7631422

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 3779, 7558, 71801, 143602, 336331, 672662, 6390289, 12780578]

約数ペア:

[(1, 12780578), (2, 6390289), (19, 672662), (38, 336331), (89, 143602), (178, 71801), (1691, 7558), (3382, 3779)]