28039130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{400559}}^1$

素因数の和:400573

約数の個数: 16

約数和(自身を含む): 57680640

約数和(自身を除く): 29641510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 400559, 801118, 2002795, 2803913, 4005590, 5607826, 14019565, 28039130]

約数ペア:

[(1, 28039130), (2, 14019565), (5, 5607826), (7, 4005590), (10, 2803913), (14, 2002795), (35, 801118), (70, 400559)]