28042810

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{6661}}^1$

素因数の和:7089

約数の個数: 16

約数和(自身を含む): 50604552

約数和(自身を除く): 22561742

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 6661, 13322, 33305, 66610, 2804281, 5608562, 14021405, 28042810]

約数ペア:

[(1, 28042810), (2, 14021405), (5, 5608562), (10, 2804281), (421, 66610), (842, 33305), (2105, 13322), (4210, 6661)]