28981490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40819}}^1$

素因数の和:40897

約数の個数: 16

約数和(自身を含む): 52902720

約数和(自身を除く): 23921230

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40819, 81638, 204095, 408190, 2898149, 5796298, 14490745, 28981490]

約数ペア:

[(1, 28981490), (2, 14490745), (5, 5796298), (10, 2898149), (71, 408190), (142, 204095), (355, 81638), (710, 40819)]