217062020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1550443}}^1$

素因数の和:1550459

約数の個数: 24

約数和(自身を含む): 520949184

約数和(自身を除く): 303887164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1550443, 3100886, 6201772, 7752215, 10853101, 15504430, 21706202, 31008860, 43412404, 54265505, 108531010, 217062020]

約数ペア:

[(1, 217062020), (2, 108531010), (4, 54265505), (5, 43412404), (7, 31008860), (10, 21706202), (14, 15504430), (20, 10853101), (28, 7752215), (35, 6201772), (70, 3100886), (140, 1550443)]