28409230

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40013}}^1$

素因数の和:40091

約数の個数: 16

約数和(自身を含む): 51858144

約数和(自身を除く): 23448914

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40013, 80026, 200065, 400130, 2840923, 5681846, 14204615, 28409230]

約数ペア:

[(1, 28409230), (2, 14204615), (5, 5681846), (10, 2840923), (71, 400130), (142, 200065), (355, 80026), (710, 40013)]