15720656

素因数分解:

$2^4\times 7^1\times {\mathrm{140363}}^1$

素因数の和:140378

約数の個数: 20

約数和(自身を含む): 34810272

約数和(自身を除く): 19089616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 140363, 280726, 561452, 982541, 1122904, 1965082, 2245808, 3930164, 7860328, 15720656]

約数ペア:

[(1, 15720656), (2, 7860328), (4, 3930164), (7, 2245808), (8, 1965082), (14, 1122904), (16, 982541), (28, 561452), (56, 280726), (112, 140363)]