20902070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{298601}}^1$

素因数の和:298615

約数の個数: 16

約数和(自身を含む): 42998688

約数和(自身を除く): 22096618

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 298601, 597202, 1493005, 2090207, 2986010, 4180414, 10451035, 20902070]

約数ペア:

[(1, 20902070), (2, 10451035), (5, 4180414), (7, 2986010), (10, 2090207), (14, 1493005), (35, 597202), (70, 298601)]