223861520

素因数分解:

$2^4\times 5^1\times {\mathrm{2798269}}^1$

素因数の和:2798282

約数の個数: 20

約数和(自身を含む): 520478220

約数和(自身を除く): 296616700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2798269, 5596538, 11193076, 13991345, 22386152, 27982690, 44772304, 55965380, 111930760, 223861520]

約数ペア:

[(1, 223861520), (2, 111930760), (4, 55965380), (5, 44772304), (8, 27982690), (10, 22386152), (16, 13991345), (20, 11193076), (40, 5596538), (80, 2798269)]