131632720

素因数分解:

$2^4\times 5^1\times {\mathrm{1645409}}^1$

素因数の和:1645422

約数の個数: 20

約数和(自身を含む): 306046260

約数和(自身を除く): 174413540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1645409, 3290818, 6581636, 8227045, 13163272, 16454090, 26326544, 32908180, 65816360, 131632720]

約数ペア:

[(1, 131632720), (2, 65816360), (4, 32908180), (5, 26326544), (8, 16454090), (10, 13163272), (16, 8227045), (20, 6581636), (40, 3290818), (80, 1645409)]