81772540

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{27077}}^1$

素因数の和:27237

約数の個数: 24

約数和(自身を含む): 172865952

約数和(自身を除く): 91093412

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 27077, 54154, 108308, 135385, 270770, 541540, 4088627, 8177254, 16354508, 20443135, 40886270, 81772540]

約数ペア:

[(1, 81772540), (2, 40886270), (4, 20443135), (5, 16354508), (10, 8177254), (20, 4088627), (151, 541540), (302, 270770), (604, 135385), (755, 108308), (1510, 54154), (3020, 27077)]