28400330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405719}}^1$

素因数の和:405733

約数の個数: 16

約数和(自身を含む): 58423680

約数和(自身を除く): 30023350

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405719, 811438, 2028595, 2840033, 4057190, 5680066, 14200165, 28400330]

約数ペア:

[(1, 28400330), (2, 14200165), (5, 5680066), (7, 4057190), (10, 2840033), (14, 2028595), (35, 811438), (70, 405719)]