80457871420

素因数分解:

$2^2\times 5^1\times {\mathrm{4022893571}}^1$

素因数の和:4022893580

約数の個数: 12

約数和(自身を含む): 168961530024

約数和(自身を除く): 88503658604

約数列:

[1, 2, 4, 5, 10, 20, 4022893571, 8045787142, 16091574284, 20114467855, 40228935710, 80457871420]

約数ペア:

[(1, 80457871420), (2, 40228935710), (4, 20114467855), (5, 16091574284), (10, 8045787142), (20, 4022893571)]