681694492

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{25771}}^1$

素因数の和:26181

約数の個数: 24

約数和(自身を含む): 1266436080

約数和(自身を除く): 584741588

約数列:

[1, 2, 4, 17, 34, 68, 389, 778, 1556, 6613, 13226, 25771, 26452, 51542, 103084, 438107, 876214, 1752428, 10024919, 20049838, 40099676, 170423623, 340847246, 681694492]

約数ペア:

[(1, 681694492), (2, 340847246), (4, 170423623), (17, 40099676), (34, 20049838), (68, 10024919), (389, 1752428), (778, 876214), (1556, 438107), (6613, 103084), (13226, 51542), (25771, 26452)]