81771510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20807}}^1$

素因数の和:20948

約数の個数: 32

約数和(自身を含む): 197759232

約数和(自身を除く): 115987722

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 131, 262, 393, 655, 786, 1310, 1965, 3930, 20807, 41614, 62421, 104035, 124842, 208070, 312105, 624210, 2725717, 5451434, 8177151, 13628585, 16354302, 27257170, 40885755, 81771510]

約数ペア:

[(1, 81771510), (2, 40885755), (3, 27257170), (5, 16354302), (6, 13628585), (10, 8177151), (15, 5451434), (30, 2725717), (131, 624210), (262, 312105), (393, 208070), (655, 124842), (786, 104035), (1310, 62421), (1965, 41614), (3930, 20807)]