28314640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8231}}^1$

素因数の和:8287

約数の個数: 40

約数和(自身を含む): 67370688

約数和(自身を除く): 39056048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8231, 16462, 32924, 41155, 65848, 82310, 131696, 164620, 329240, 353933, 658480, 707866, 1415732, 1769665, 2831464, 3539330, 5662928, 7078660, 14157320, 28314640]

約数ペア:

[(1, 28314640), (2, 14157320), (4, 7078660), (5, 5662928), (8, 3539330), (10, 2831464), (16, 1769665), (20, 1415732), (40, 707866), (43, 658480), (80, 353933), (86, 329240), (172, 164620), (215, 131696), (344, 82310), (430, 65848), (688, 41155), (860, 32924), (1720, 16462), (3440, 8231)]