28235990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39769}}^1$

素因数の和:39847

約数の個数: 16

約数和(自身を含む): 51541920

約数和(自身を除く): 23305930

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 39769, 79538, 198845, 397690, 2823599, 5647198, 14117995, 28235990]

約数ペア:

[(1, 28235990), (2, 14117995), (5, 5647198), (10, 2823599), (71, 397690), (142, 198845), (355, 79538), (710, 39769)]