81487588

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31981}}^1$

素因数の和:32012

約数の個数: 36

約数和(自身を含む): 178651452

約数和(自身を除く): 97163864

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 31981, 63962, 127924, 223867, 415753, 447734, 831506, 895468, 1567069, 1663012, 2910271, 3134138, 5820542, 6268276, 11641084, 20371897, 40743794, 81487588]

約数ペア:

[(1, 81487588), (2, 40743794), (4, 20371897), (7, 11641084), (13, 6268276), (14, 5820542), (26, 3134138), (28, 2910271), (49, 1663012), (52, 1567069), (91, 895468), (98, 831506), (182, 447734), (196, 415753), (364, 223867), (637, 127924), (1274, 63962), (2548, 31981)]