90105520

素因数分解:

$2^4\times 5^1\times {\mathrm{1126319}}^1$

素因数の和:1126332

約数の個数: 20

約数和(自身を含む): 209495520

約数和(自身を除く): 119390000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1126319, 2252638, 4505276, 5631595, 9010552, 11263190, 18021104, 22526380, 45052760, 90105520]

約数ペア:

[(1, 90105520), (2, 45052760), (4, 22526380), (5, 18021104), (8, 11263190), (10, 9010552), (16, 5631595), (20, 4505276), (40, 2252638), (80, 1126319)]