15781136

素因数分解:

$2^4\times 7^2\times {\mathrm{20129}}^1$

素因数の和:20151

約数の個数: 30

約数和(自身を含む): 35569710

約数和(自身を除く): 19788574

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 20129, 40258, 80516, 140903, 161032, 281806, 322064, 563612, 986321, 1127224, 1972642, 2254448, 3945284, 7890568, 15781136]

約数ペア:

[(1, 15781136), (2, 7890568), (4, 3945284), (7, 2254448), (8, 1972642), (14, 1127224), (16, 986321), (28, 563612), (49, 322064), (56, 281806), (98, 161032), (112, 140903), (196, 80516), (392, 40258), (784, 20129)]