2117320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 4878720

約数和(自身を除く): 2761400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1231, 1720, 2462, 4924, 6155, 9848, 12310, 24620, 49240, 52933, 105866, 211732, 264665, 423464, 529330, 1058660, 2117320]

約数ペア:

[(1, 2117320), (2, 1058660), (4, 529330), (5, 423464), (8, 264665), (10, 211732), (20, 105866), (40, 52933), (43, 49240), (86, 24620), (172, 12310), (215, 9848), (344, 6155), (430, 4924), (860, 2462), (1231, 1720)]