2778640040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6315091}}^1$

素因数の和:6315113

約数の個数: 32

約数和(自身を含む): 6820299360

約数和(自身を除く): 4041659320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6315091, 12630182, 25260364, 31575455, 50520728, 63150910, 69466001, 126301820, 138932002, 252603640, 277864004, 347330005, 555728008, 694660010, 1389320020, 2778640040]

約数ペア:

[(1, 2778640040), (2, 1389320020), (4, 694660010), (5, 555728008), (8, 347330005), (10, 277864004), (11, 252603640), (20, 138932002), (22, 126301820), (40, 69466001), (44, 63150910), (55, 50520728), (88, 31575455), (110, 25260364), (220, 12630182), (440, 6315091)]