28714420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205103}}^1$

素因数の和:205119

約数の個数: 24

約数和(自身を含む): 68914944

約数和(自身を除く): 40200524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205103, 410206, 820412, 1025515, 1435721, 2051030, 2871442, 4102060, 5742884, 7178605, 14357210, 28714420]

約数ペア:

[(1, 28714420), (2, 14357210), (4, 7178605), (5, 5742884), (7, 4102060), (10, 2871442), (14, 2051030), (20, 1435721), (28, 1025515), (35, 820412), (70, 410206), (140, 205103)]