1979720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 4561920

約数和(自身を除く): 2582200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1151, 1720, 2302, 4604, 5755, 9208, 11510, 23020, 46040, 49493, 98986, 197972, 247465, 395944, 494930, 989860, 1979720]

約数ペア:

[(1, 1979720), (2, 989860), (4, 494930), (5, 395944), (8, 247465), (10, 197972), (20, 98986), (40, 49493), (43, 46040), (86, 23020), (172, 11510), (215, 9208), (344, 5755), (430, 4604), (860, 2302), (1151, 1720)]