81412268

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{7109}}^1$

素因数の和:7529

約数の個数: 24

約数和(自身を含む): 163245600

約数和(自身を除く): 81833332

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 2863, 5726, 7109, 11452, 14218, 28436, 49763, 99526, 199052, 2907581, 5815162, 11630324, 20353067, 40706134, 81412268]

約数ペア:

[(1, 81412268), (2, 40706134), (4, 20353067), (7, 11630324), (14, 5815162), (28, 2907581), (409, 199052), (818, 99526), (1636, 49763), (2863, 28436), (5726, 14218), (7109, 11452)]