128401767

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2085

約数の個数: 40

約数和(自身を含む): 210056000

約数和(自身を除く): 81654233

約数列:

[1, 3, 9, 13, 27, 39, 61, 81, 117, 183, 351, 549, 793, 1053, 1647, 1999, 2379, 4941, 5997, 7137, 17991, 21411, 25987, 53973, 64233, 77961, 121939, 161919, 233883, 365817, 701649, 1097451, 1585207, 2104947, 3292353, 4755621, 9877059, 14266863, 42800589, 128401767]

約数ペア:

[(1, 128401767), (3, 42800589), (9, 14266863), (13, 9877059), (27, 4755621), (39, 3292353), (61, 2104947), (81, 1585207), (117, 1097451), (183, 701649), (351, 365817), (549, 233883), (793, 161919), (1053, 121939), (1647, 77961), (1999, 64233), (2379, 53973), (4941, 25987), (5997, 21411), (7137, 17991)]