77881646680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1\times {\mathrm{49757}}^1$

素因数の和:50236

約数の個数: 64

約数和(自身を含む): 177337512000

約数和(自身を除く): 99455865320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 359, 436, 545, 718, 872, 1090, 1436, 1795, 2180, 2872, 3590, 4360, 7180, 14360, 39131, 49757, 78262, 99514, 156524, 195655, 199028, 248785, 313048, 391310, 398056, 497570, 782620, 995140, 1565240, 1990280, 5423513, 10847026, 17862763, 21694052, 27117565, 35725526, 43388104, 54235130, 71451052, 89313815, 108470260, 142902104, 178627630, 216940520, 357255260, 714510520, 1947041167, 3894082334, 7788164668, 9735205835, 15576329336, 19470411670, 38940823340, 77881646680]

約数ペア:

[(1, 77881646680), (2, 38940823340), (4, 19470411670), (5, 15576329336), (8, 9735205835), (10, 7788164668), (20, 3894082334), (40, 1947041167), (109, 714510520), (218, 357255260), (359, 216940520), (436, 178627630), (545, 142902104), (718, 108470260), (872, 89313815), (1090, 71451052), (1436, 54235130), (1795, 43388104), (2180, 35725526), (2872, 27117565), (3590, 21694052), (4360, 17862763), (7180, 10847026), (14360, 5423513), (39131, 1990280), (49757, 1565240), (78262, 995140), (99514, 782620), (156524, 497570), (195655, 398056), (199028, 391310), (248785, 313048)]