3280040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 7555680

約数和(自身を除く): 4275640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1907, 3814, 7628, 9535, 15256, 19070, 38140, 76280, 82001, 164002, 328004, 410005, 656008, 820010, 1640020, 3280040]

約数ペア:

[(1, 3280040), (2, 1640020), (4, 820010), (5, 656008), (8, 410005), (10, 328004), (20, 164002), (40, 82001), (43, 76280), (86, 38140), (172, 19070), (215, 15256), (344, 9535), (430, 7628), (860, 3814), (1720, 1907)]