8320720

素因数分解:

$2^4\times 5^1\times {\mathrm{104009}}^1$

素因数の和:104022

約数の個数: 20

約数和(自身を含む): 19345860

約数和(自身を除く): 11025140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 104009, 208018, 416036, 520045, 832072, 1040090, 1664144, 2080180, 4160360, 8320720]

約数ペア:

[(1, 8320720), (2, 4160360), (4, 2080180), (5, 1664144), (8, 1040090), (10, 832072), (16, 520045), (20, 416036), (40, 208018), (80, 104009)]