20128005

素因数分解:

$3^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1033}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 35002968

約数和(自身を除く): 14874963

約数列:

[1, 3, 5, 9, 15, 45, 433, 1033, 1299, 2165, 3099, 3897, 5165, 6495, 9297, 15495, 19485, 46485, 447289, 1341867, 2236445, 4025601, 6709335, 20128005]

約数ペア:

[(1, 20128005), (3, 6709335), (5, 4025601), (9, 2236445), (15, 1341867), (45, 447289), (433, 46485), (1033, 19485), (1299, 15495), (2165, 9297), (3099, 6495), (3897, 5165)]