16563280

素因数分解:

$2^4\times 5^1\times {\mathrm{207041}}^1$

素因数の和:207054

約数の個数: 20

約数和(自身を含む): 38509812

約数和(自身を除く): 21946532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 207041, 414082, 828164, 1035205, 1656328, 2070410, 3312656, 4140820, 8281640, 16563280]

約数ペア:

[(1, 16563280), (2, 8281640), (4, 4140820), (5, 3312656), (8, 2070410), (10, 1656328), (16, 1035205), (20, 828164), (40, 414082), (80, 207041)]