12505520

素因数分解:

$2^4\times 5^1\times {\mathrm{156319}}^1$

素因数の和:156332

約数の個数: 20

約数和(自身を含む): 29075520

約数和(自身を除く): 16570000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156319, 312638, 625276, 781595, 1250552, 1563190, 2501104, 3126380, 6252760, 12505520]

約数ペア:

[(1, 12505520), (2, 6252760), (4, 3126380), (5, 2501104), (8, 1563190), (10, 1250552), (16, 781595), (20, 625276), (40, 312638), (80, 156319)]