81363940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{581171}}^1$

素因数の和:581187

約数の個数: 24

約数和(自身を含む): 195273792

約数和(自身を除く): 113909852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581171, 1162342, 2324684, 2905855, 4068197, 5811710, 8136394, 11623420, 16272788, 20340985, 40681970, 81363940]

約数ペア:

[(1, 81363940), (2, 40681970), (4, 20340985), (5, 16272788), (7, 11623420), (10, 8136394), (14, 5811710), (20, 4068197), (28, 2905855), (35, 2324684), (70, 1162342), (140, 581171)]