220029520

素因数分解:

$2^4\times 5^1\times {\mathrm{2750369}}^1$

素因数の和:2750382

約数の個数: 20

約数和(自身を含む): 511568820

約数和(自身を除く): 291539300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2750369, 5500738, 11001476, 13751845, 22002952, 27503690, 44005904, 55007380, 110014760, 220029520]

約数ペア:

[(1, 220029520), (2, 110014760), (4, 55007380), (5, 44005904), (8, 27503690), (10, 22002952), (16, 13751845), (20, 11001476), (40, 5500738), (80, 2750369)]