28864340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20327}}^1$

素因数の和:20407

約数の個数: 24

約数和(自身を含む): 61471872

約数和(自身を除く): 32607532

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 20327, 40654, 81308, 101635, 203270, 406540, 1443217, 2886434, 5772868, 7216085, 14432170, 28864340]

約数ペア:

[(1, 28864340), (2, 14432170), (4, 7216085), (5, 5772868), (10, 2886434), (20, 1443217), (71, 406540), (142, 203270), (284, 101635), (355, 81308), (710, 40654), (1420, 20327)]