20505270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1063}}^1$

素因数の和:1716

約数の個数: 32

約数和(自身を含む): 49335552

約数和(自身を除く): 28830282

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 643, 1063, 1286, 1929, 2126, 3189, 3215, 3858, 5315, 6378, 6430, 9645, 10630, 15945, 19290, 31890, 683509, 1367018, 2050527, 3417545, 4101054, 6835090, 10252635, 20505270]

約数ペア:

[(1, 20505270), (2, 10252635), (3, 6835090), (5, 4101054), (6, 3417545), (10, 2050527), (15, 1367018), (30, 683509), (643, 31890), (1063, 19290), (1286, 15945), (1929, 10630), (2126, 9645), (3189, 6430), (3215, 6378), (3858, 5315)]