261061245

素因数分解:

$3^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4871}}^1$

素因数の和:5282

約数の個数: 32

約数和(自身を含む): 465373440

約数和(自身を除く): 204312195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 397, 1191, 1985, 3573, 4871, 5955, 10719, 14613, 17865, 24355, 43839, 53595, 73065, 131517, 219195, 657585, 1933787, 5801361, 9668935, 17404083, 29006805, 52212249, 87020415, 261061245]

約数ペア:

[(1, 261061245), (3, 87020415), (5, 52212249), (9, 29006805), (15, 17404083), (27, 9668935), (45, 5801361), (135, 1933787), (397, 657585), (1191, 219195), (1985, 131517), (3573, 73065), (4871, 53595), (5955, 43839), (10719, 24355), (14613, 17865)]