81381255

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{53717}}^1$

素因数の和:53826

約数の個数: 16

約数和(自身を含む): 131501664

約数和(自身を除く): 50120409

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 53717, 161151, 268585, 805755, 5425417, 16276251, 27127085, 81381255]

約数ペア:

[(1, 81381255), (3, 27127085), (5, 16276251), (15, 5425417), (101, 805755), (303, 268585), (505, 161151), (1515, 53717)]