1968825872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{305339}}^1$

素因数の和:305391

約数の個数: 40

約数和(自身を含む): 4240561920

約数和(自身を除く): 2271736048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 305339, 610678, 1221356, 2442712, 3969407, 4885424, 7938814, 9465509, 15877628, 18931018, 31755256, 37862036, 63510512, 75724072, 123051617, 151448144, 246103234, 492206468, 984412936, 1968825872]

約数ペア:

[(1, 1968825872), (2, 984412936), (4, 492206468), (8, 246103234), (13, 151448144), (16, 123051617), (26, 75724072), (31, 63510512), (52, 37862036), (62, 31755256), (104, 18931018), (124, 15877628), (208, 9465509), (248, 7938814), (403, 4885424), (496, 3969407), (806, 2442712), (1612, 1221356), (3224, 610678), (6448, 305339)]