8280880

素因数分解:

$2^4\times 5^1\times {\mathrm{103511}}^1$

素因数の和:103524

約数の個数: 20

約数和(自身を含む): 19253232

約数和(自身を除く): 10972352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103511, 207022, 414044, 517555, 828088, 1035110, 1656176, 2070220, 4140440, 8280880]

約数ペア:

[(1, 8280880), (2, 4140440), (4, 2070220), (5, 1656176), (8, 1035110), (10, 828088), (16, 517555), (20, 414044), (40, 207022), (80, 103511)]