81405945

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 74114055

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 79, 85, 135, 153, 237, 255, 395, 449, 459, 711, 765, 1185, 1343, 1347, 2133, 2245, 2295, 3555, 4029, 4041, 6715, 6735, 7633, 10665, 12087, 12123, 20145, 20205, 22899, 35471, 36261, 38165, 60435, 60615, 68697, 106413, 114495, 177355, 181305, 206091, 319239, 343485, 532065, 603007, 957717, 1030455, 1596195, 1809021, 3015035, 4788585, 5427063, 9045105, 16281189, 27135315, 81405945]

約数ペア:

[(1, 81405945), (3, 27135315), (5, 16281189), (9, 9045105), (15, 5427063), (17, 4788585), (27, 3015035), (45, 1809021), (51, 1596195), (79, 1030455), (85, 957717), (135, 603007), (153, 532065), (237, 343485), (255, 319239), (395, 206091), (449, 181305), (459, 177355), (711, 114495), (765, 106413), (1185, 68697), (1343, 60615), (1347, 60435), (2133, 38165), (2245, 36261), (2295, 35471), (3555, 22899), (4029, 20205), (4041, 20145), (6715, 12123), (6735, 12087), (7633, 10665)]