28004530

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39443}}^1$

素因数の和:39521

約数の個数: 16

約数和(自身を含む): 51119424

約数和(自身を除く): 23114894

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 39443, 78886, 197215, 394430, 2800453, 5600906, 14002265, 28004530]

約数ペア:

[(1, 28004530), (2, 14002265), (5, 5600906), (10, 2800453), (71, 394430), (142, 197215), (355, 78886), (710, 39443)]