1808712855

素因数分解:

$3^3\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{6709}}^1$

素因数の和:8720

約数の個数: 32

約数和(自身を含む): 3217579200

約数和(自身を除く): 1408866345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1997, 5991, 6709, 9985, 17973, 20127, 29955, 33545, 53919, 60381, 89865, 100635, 181143, 269595, 301905, 905715, 13397873, 40193619, 66989365, 120580857, 200968095, 361742571, 602904285, 1808712855]

約数ペア:

[(1, 1808712855), (3, 602904285), (5, 361742571), (9, 200968095), (15, 120580857), (27, 66989365), (45, 40193619), (135, 13397873), (1997, 905715), (5991, 301905), (6709, 269595), (9985, 181143), (17973, 100635), (20127, 89865), (29955, 60381), (33545, 53919)]