71428420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{510203}}^1$

素因数の和:510219

約数の個数: 24

約数和(自身を含む): 171428544

約数和(自身を除く): 100000124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 510203, 1020406, 2040812, 2551015, 3571421, 5102030, 7142842, 10204060, 14285684, 17857105, 35714210, 71428420]

約数ペア:

[(1, 71428420), (2, 35714210), (4, 17857105), (5, 14285684), (7, 10204060), (10, 7142842), (14, 5102030), (20, 3571421), (28, 2551015), (35, 2040812), (70, 1020406), (140, 510203)]