28754215

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2903}}^1$

素因数の和:3198

約数の個数: 16

約数和(自身を含む): 39587328

約数和(自身を除く): 10833113

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 2903, 9905, 14515, 20321, 101605, 821549, 4107745, 5750843, 28754215]

約数ペア:

[(1, 28754215), (5, 5750843), (7, 4107745), (35, 821549), (283, 101605), (1415, 20321), (1981, 14515), (2903, 9905)]